<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:0d10424c-3161-45a4-8ff2-3298fb2e78b5,g:0098af49-28d4-4d43-b2a0-15f8a5b2c9ae-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.five9.com/role/CoverPage" xlink:type="simple" xlink:href="fivn-20251231.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_d5b2def3-c2eb-4121-a059-e8091261ea09" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentType_d5b2def3-c2eb-4121-a059-e8091261ea09" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentAnnualReport_7bd09eac-6f37-4ceb-8a6a-277c06c244aa" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAnnualReport"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentAnnualReport_7bd09eac-6f37-4ceb-8a6a-277c06c244aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_e8cf3b8e-fe25-4412-b1fc-6e393c3dcf0f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentPeriodEndDate_e8cf3b8e-fe25-4412-b1fc-6e393c3dcf0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_689d8d21-4b5d-4a72-b273-f93810bc5e6a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_CurrentFiscalYearEndDate_689d8d21-4b5d-4a72-b273-f93810bc5e6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_39d621d0-fbbd-4d41-a47c-d43d0b9eb257" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentTransitionReport"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentTransitionReport_39d621d0-fbbd-4d41-a47c-d43d0b9eb257" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_ea0f1cf2-5ec1-4990-b548-5a50a8769854" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityFileNumber_ea0f1cf2-5ec1-4990-b548-5a50a8769854" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_b2e8230e-754c-466d-a472-110f8ee7fa61" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityRegistrantName_b2e8230e-754c-466d-a472-110f8ee7fa61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_601e2439-0091-4d4f-9b5f-0783375411f0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityIncorporationStateCountryCode_601e2439-0091-4d4f-9b5f-0783375411f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_6020fdf6-a74d-44d5-aa9c-1cf2dd735e0b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityTaxIdentificationNumber_6020fdf6-a74d-44d5-aa9c-1cf2dd735e0b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_30aabf24-e8a7-4072-92db-14103b944f2c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityAddressAddressLine1_30aabf24-e8a7-4072-92db-14103b944f2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_7ceaedfb-3f26-47cb-b14e-2f3db1ef1a89" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityAddressAddressLine2_7ceaedfb-3f26-47cb-b14e-2f3db1ef1a89" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_2e8b793d-0833-47c8-b09c-a7854bc04af1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityAddressCityOrTown_2e8b793d-0833-47c8-b09c-a7854bc04af1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_7e071b53-3072-42b8-a07b-a08259e3d249" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityAddressStateOrProvince_7e071b53-3072-42b8-a07b-a08259e3d249" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_b3e74858-8f06-4c0b-9562-5fcbec75bfe6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityAddressPostalZipCode_b3e74858-8f06-4c0b-9562-5fcbec75bfe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_3540bd83-9133-434a-bf93-7e0882271a42" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_CityAreaCode_3540bd83-9133-434a-bf93-7e0882271a42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_5fe74548-8c80-4449-b153-00602b090c31" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_LocalPhoneNumber_5fe74548-8c80-4449-b153-00602b090c31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_7f5c9481-6fcf-4eee-ab32-86f55bb768fb" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_Security12bTitle_7f5c9481-6fcf-4eee-ab32-86f55bb768fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_258f0f28-591d-4f9c-bc8f-dd1faba8488f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_TradingSymbol_258f0f28-591d-4f9c-bc8f-dd1faba8488f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_fedf161b-8d19-4003-9f59-d04190cf9a73" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_SecurityExchangeName_fedf161b-8d19-4003-9f59-d04190cf9a73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_18186d8c-7a51-475d-87e9-bac9212f4e15" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityWellKnownSeasonedIssuer"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_18186d8c-7a51-475d-87e9-bac9212f4e15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityVoluntaryFilers_c8cc0217-f2cc-4430-bc60-9ccc42612e55" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityVoluntaryFilers"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityVoluntaryFilers_c8cc0217-f2cc-4430-bc60-9ccc42612e55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_08971582-9e92-419c-b09a-adfc93be3120" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityCurrentReportingStatus_08971582-9e92-419c-b09a-adfc93be3120" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_ca5a5d6c-002f-4d74-97f6-82428732518d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityInteractiveDataCurrent_ca5a5d6c-002f-4d74-97f6-82428732518d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_30727ceb-e6b8-40bc-aa4b-499419cfb872" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFilerCategory"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityFilerCategory_30727ceb-e6b8-40bc-aa4b-499419cfb872" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_d3f2eaf9-8231-498b-9114-86543e9a8fe9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntitySmallBusiness"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntitySmallBusiness_d3f2eaf9-8231-498b-9114-86543e9a8fe9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_b04963fc-753f-4e0b-adb7-1926779c039d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityEmergingGrowthCompany_b04963fc-753f-4e0b-adb7-1926779c039d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_IcfrAuditorAttestationFlag_90d27dc9-b304-4b69-b5d4-06227bef507c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_IcfrAuditorAttestationFlag"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_IcfrAuditorAttestationFlag_90d27dc9-b304-4b69-b5d4-06227bef507c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag_d8702c76-7fe0-4bca-a1df-e12f7416516d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFinStmtErrorCorrectionFlag"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentFinStmtErrorCorrectionFlag_d8702c76-7fe0-4bca-a1df-e12f7416516d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_cfb578a3-8473-4675-8c2f-39d2e097708b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityShellCompany"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityShellCompany_cfb578a3-8473-4675-8c2f-39d2e097708b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityPublicFloat_47ce8056-8929-4bdf-beda-18c5fcd165a0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityPublicFloat"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityPublicFloat_47ce8056-8929-4bdf-beda-18c5fcd165a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_538013ae-1480-44b8-9bb8-6b632018963c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_538013ae-1480-44b8-9bb8-6b632018963c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentsIncorporatedByReferenceTextBlock_1975f56a-838d-4fd0-9565-f435e33b1ffe" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentsIncorporatedByReferenceTextBlock"/>
    <link:presentationArc order="32" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentsIncorporatedByReferenceTextBlock_1975f56a-838d-4fd0-9565-f435e33b1ffe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_7a2227c9-1412-4a90-a108-88b9fba2b172" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="33" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_EntityCentralIndexKey_7a2227c9-1412-4a90-a108-88b9fba2b172" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_af43e346-34d5-4c12-96e2-d96ed43c5a55" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus"/>
    <link:presentationArc order="34" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentFiscalYearFocus_af43e346-34d5-4c12-96e2-d96ed43c5a55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_87f37c16-3802-43d0-9cb5-d6e3f57f0a31" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:presentationArc order="35" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_DocumentFiscalPeriodFocus_87f37c16-3802-43d0-9cb5-d6e3f57f0a31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_79b61a44-f30b-4c15-902e-4d22d963dad2" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="36" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_7c35e77e-a71b-4041-9fdf-7d435e31a998" xlink:to="loc_dei_AmendmentFlag_79b61a44-f30b-4c15-902e-4d22d963dad2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/AuditInformation" xlink:type="simple" xlink:href="fivn-20251231.xsd#AuditInformation"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/AuditInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AuditInformationAbstract_c01eeecc-809c-4cf3-9ae9-258d1efe6b4c" xlink:href="fivn-20251231.xsd#fivn_AuditInformationAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorFirmId_bbbbcaea-afaa-44cb-9da3-9bf753614907" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorFirmId"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_AuditInformationAbstract_c01eeecc-809c-4cf3-9ae9-258d1efe6b4c" xlink:to="loc_dei_AuditorFirmId_bbbbcaea-afaa-44cb-9da3-9bf753614907" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorName_4d686844-b5b5-4cd9-9d25-886a8c3bc80e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorName"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_AuditInformationAbstract_c01eeecc-809c-4cf3-9ae9-258d1efe6b4c" xlink:to="loc_dei_AuditorName_4d686844-b5b5-4cd9-9d25-886a8c3bc80e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorLocation_6fc3de31-b187-4861-85ce-635bf4cf1c4a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorLocation"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_AuditInformationAbstract_c01eeecc-809c-4cf3-9ae9-258d1efe6b4c" xlink:to="loc_dei_AuditorLocation_6fc3de31-b187-4861-85ce-635bf4cf1c4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="fivn-20251231.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_b47ed076-17a9-4a55-9c75-c3650ba1c686" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_b47ed076-17a9-4a55-9c75-c3650ba1c686" xlink:to="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_8c97237b-0d04-4df3-b4d0-922f3a2ec8b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_8c97237b-0d04-4df3-b4d0-922f3a2ec8b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_ae1fd9b9-38a5-4f10-a743-637aee0dcbc1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_ae1fd9b9-38a5-4f10-a743-637aee0dcbc1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_a90ff5e0-3cfc-4686-9b51-0ae1c6826f8d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_a90ff5e0-3cfc-4686-9b51-0ae1c6826f8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_2034785e-c02f-4775-96ed-790f2e199a1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_2034785e-c02f-4775-96ed-790f2e199a1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetCurrent_3ad3581c-4624-440c-8e97-a93f8123056c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostNetCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:to="loc_us-gaap_CapitalizedContractCostNetCurrent_3ad3581c-4624-440c-8e97-a93f8123056c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_0ff1b71f-5088-4815-a2ad-5549d5aeda22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_f8794c95-075a-4507-b936-ee13fde5d34d" xlink:to="loc_us-gaap_AssetsCurrent_0ff1b71f-5088-4815-a2ad-5549d5aeda22" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_47d5ad32-0f15-4a61-9df4-54c3facf4013" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_47d5ad32-0f15-4a61-9df4-54c3facf4013" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_261a61e4-7e61-4bf9-bcf9-9b1f707e456d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_261a61e4-7e61-4bf9-bcf9-9b1f707e456d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_8c41db01-c184-4425-b975-9434963cf05f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_8c41db01-c184-4425-b975-9434963cf05f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_60c52504-f058-49bf-8bd7-637f6e58fe71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_60c52504-f058-49bf-8bd7-637f6e58fe71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_8f28137e-fd1f-4f98-8a72-fb148075719b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_Goodwill_8f28137e-fd1f-4f98-8a72-fb148075719b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_b56122b2-629b-4317-bd80-4269420c702d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_b56122b2-629b-4317-bd80-4269420c702d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetNoncurrent_9a9f7358-5ab5-4f73-ad04-231d40773245" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostNetNoncurrent"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_CapitalizedContractCostNetNoncurrent_9a9f7358-5ab5-4f73-ad04-231d40773245" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_c2780827-9c9e-4775-a2b1-e51baca43a75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_6533a6af-2a23-4d4f-890c-d8e0cc7e4856" xlink:to="loc_us-gaap_Assets_c2780827-9c9e-4775-a2b1-e51baca43a75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_b47ed076-17a9-4a55-9c75-c3650ba1c686" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_9fc2ac1a-3199-4bf0-b2be-e5eb2d1b7a52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_us-gaap_AccountsPayableCurrent_9fc2ac1a-3199-4bf0-b2be-e5eb2d1b7a52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AccruedLiabilitiesandOtherCurrentLiabilities_30efbe7c-3b56-4bd6-9f12-2689e7f3cb10" xlink:href="fivn-20251231.xsd#fivn_AccruedLiabilitiesandOtherCurrentLiabilities"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_fivn_AccruedLiabilitiesandOtherCurrentLiabilities_30efbe7c-3b56-4bd6-9f12-2689e7f3cb10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_837cc5bb-d1fc-4b23-9356-1a420c1e23c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_837cc5bb-d1fc-4b23-9356-1a420c1e23c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_aa254b05-b0da-4fcf-a603-3f6d36c634e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_aa254b05-b0da-4fcf-a603-3f6d36c634e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_c7637270-bfdb-4a29-b0c0-24c6f741ca43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_c7637270-bfdb-4a29-b0c0-24c6f741ca43" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtCurrent_047403f8-52c7-4502-b769-6f522b7a8f52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_us-gaap_ConvertibleDebtCurrent_047403f8-52c7-4502-b769-6f522b7a8f52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_065231a2-0a87-4b43-a640-a2fa82feaa83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_fbc88703-37e0-4493-8f18-8af9682776f0" xlink:to="loc_us-gaap_LiabilitiesCurrent_065231a2-0a87-4b43-a640-a2fa82feaa83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtNoncurrent_8b39b1d1-45fc-42c8-8d29-60c2646c948b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_ConvertibleDebtNoncurrent_8b39b1d1-45fc-42c8-8d29-60c2646c948b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_9dd3e812-0335-4fea-a69f-2f93ff48a93a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_9dd3e812-0335-4fea-a69f-2f93ff48a93a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_4c9806cb-c857-4f93-97e0-206c8d2c839c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_4c9806cb-c857-4f93-97e0-206c8d2c839c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_116763d7-9278-48f6-a3d6-d7eff8db7972" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_116763d7-9278-48f6-a3d6-d7eff8db7972" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_4ea38a32-48e4-45e8-8408-52076fd48e27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_Liabilities_4ea38a32-48e4-45e8-8408-52076fd48e27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_71f381b7-bc58-4416-99ce-5ce1bc302a8f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_CommitmentsAndContingencies_71f381b7-bc58-4416-99ce-5ce1bc302a8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_329b2b58-1784-44f8-a805-edaa09251359" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValueOutstanding"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_329b2b58-1784-44f8-a805-edaa09251359" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_903eff5d-99e8-4607-af92-12631d5d0643" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:to="loc_us-gaap_CommonStockValueOutstanding_903eff5d-99e8-4607-af92-12631d5d0643" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_8bee6110-e95d-4c48-b63d-77e052e2330f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:to="loc_us-gaap_AdditionalPaidInCapital_8bee6110-e95d-4c48-b63d-77e052e2330f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_9fd0fcd0-264e-4e55-9714-eccff151be65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_9fd0fcd0-264e-4e55-9714-eccff151be65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_b5b180a2-dae9-430d-8e3f-22322b2cd9fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_b5b180a2-dae9-430d-8e3f-22322b2cd9fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_5f70f2f8-afef-4a29-ad29-6b02acce749b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94bf955a-1fff-4db6-a41b-345e38271af2" xlink:to="loc_us-gaap_StockholdersEquity_5f70f2f8-afef-4a29-ad29-6b02acce749b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_eb617013-9f4c-4d73-975c-692ca5160891" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_ef30a811-7c85-43e8-bd4f-cfbd32b3ac25" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_eb617013-9f4c-4d73-975c-692ca5160891" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="fivn-20251231.xsd#CONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_51d160d6-0946-4f05-b066-9fd8b465f54f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_51d160d6-0946-4f05-b066-9fd8b465f54f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_2924d238-bc1b-41be-a84e-2f454d86d63f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_2924d238-bc1b-41be-a84e-2f454d86d63f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_9ab02325-7963-482a-b425-b1372969508a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_9ab02325-7963-482a-b425-b1372969508a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_0c7b5308-fc16-4292-965a-349a1bf05939" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_0c7b5308-fc16-4292-965a-349a1bf05939" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_d364a742-95eb-4b69-bbb6-5a3a2dbe0202" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:to="loc_us-gaap_CommonStockSharesIssued_d364a742-95eb-4b69-bbb6-5a3a2dbe0202" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_015d0518-e4d7-45ae-bc1b-b563f7b67da0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_60aec1c5-a271-4cf8-a6af-29c105a5a380" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_015d0518-e4d7-45ae-bc1b-b563f7b67da0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMELOSS" xlink:type="simple" xlink:href="fivn-20251231.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMELOSS"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_72523899-969a-4dc4-b014-8b392d81d8ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_72523899-969a-4dc4-b014-8b392d81d8ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_8a9df40a-0f17-42b6-94b1-0c5618778467" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfRevenue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_CostOfRevenue_8a9df40a-0f17-42b6-94b1-0c5618778467" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_9b02380b-eb8b-47a1-8076-290810c3c242" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_GrossProfit_9b02380b-eb8b-47a1-8076-290810c3c242" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_c45dd9fd-d53e-49fc-964a-deb0a258b942" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_OperatingExpensesAbstract_c45dd9fd-d53e-49fc-964a-deb0a258b942" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_db854c52-3ac3-49fe-a2f5-75b06d7fdd37" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_c45dd9fd-d53e-49fc-964a-deb0a258b942" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_db854c52-3ac3-49fe-a2f5-75b06d7fdd37" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_f1829dd3-2474-4ddb-a1f6-5a770ff5c9b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_c45dd9fd-d53e-49fc-964a-deb0a258b942" xlink:to="loc_us-gaap_SellingAndMarketingExpense_f1829dd3-2474-4ddb-a1f6-5a770ff5c9b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_c4bb0c52-ecbf-4327-8c32-229f27059d3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_c45dd9fd-d53e-49fc-964a-deb0a258b942" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_c4bb0c52-ecbf-4327-8c32-229f27059d3a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_249e45dc-fe36-4a7a-946c-7228b0d9ec1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_c45dd9fd-d53e-49fc-964a-deb0a258b942" xlink:to="loc_us-gaap_OperatingExpenses_249e45dc-fe36-4a7a-946c-7228b0d9ec1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_cfd56e8c-6d44-4880-bd82-96f5f9471038" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_OperatingIncomeLoss_cfd56e8c-6d44-4880-bd82-96f5f9471038" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_62dd64f9-314a-4070-a671-d7e2417fc5be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_62dd64f9-314a-4070-a671-d7e2417fc5be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_471dc5d4-4945-4c67-a179-f14012e5f476" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_62dd64f9-314a-4070-a671-d7e2417fc5be" xlink:to="loc_us-gaap_InterestExpenseNonoperating_471dc5d4-4945-4c67-a179-f14012e5f476" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_25fc9b89-d164-4324-9ade-353d94a9f3e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_62dd64f9-314a-4070-a671-d7e2417fc5be" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_25fc9b89-d164-4324-9ade-353d94a9f3e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_caf99e5f-f661-4e6a-b457-476e6da303bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_62dd64f9-314a-4070-a671-d7e2417fc5be" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_caf99e5f-f661-4e6a-b457-476e6da303bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_e3ec0bfe-e7b6-4746-86e2-4c3287e7a86c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_62dd64f9-314a-4070-a671-d7e2417fc5be" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_e3ec0bfe-e7b6-4746-86e2-4c3287e7a86c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3f1c4fa0-d6d6-4318-8720-c7e48f88bf3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_3f1c4fa0-d6d6-4318-8720-c7e48f88bf3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_54542e53-4b39-43bb-a483-1cc5f72975fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_54542e53-4b39-43bb-a483-1cc5f72975fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_655b66cb-8ba1-44d6-aba1-0983f465e356" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_NetIncomeLoss_655b66cb-8ba1-44d6-aba1-0983f465e356" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_ad148192-6940-46db-8b68-c974f47f9140" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_EarningsPerShareAbstract_ad148192-6940-46db-8b68-c974f47f9140" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_e9e04db6-0637-4a8a-a85e-19a869bc1e81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_ad148192-6940-46db-8b68-c974f47f9140" xlink:to="loc_us-gaap_EarningsPerShareBasic_e9e04db6-0637-4a8a-a85e-19a869bc1e81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_0fb00b2a-1579-4b67-a9aa-4225c3dc7772" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_ad148192-6940-46db-8b68-c974f47f9140" xlink:to="loc_us-gaap_EarningsPerShareDiluted_0fb00b2a-1579-4b67-a9aa-4225c3dc7772" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EarningsPerShareBasicAndDilutedEPSAbstract_983c3f18-ed4a-49e3-a98a-d34d568dc445" xlink:href="fivn-20251231.xsd#fivn_EarningsPerShareBasicAndDilutedEPSAbstract"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_fivn_EarningsPerShareBasicAndDilutedEPSAbstract_983c3f18-ed4a-49e3-a98a-d34d568dc445" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_d6c22690-9282-421a-a61a-7e04fd25492f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EarningsPerShareBasicAndDilutedEPSAbstract_983c3f18-ed4a-49e3-a98a-d34d568dc445" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_d6c22690-9282-421a-a61a-7e04fd25492f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_d3f5baeb-a320-4052-b6b2-c75651d1a97e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EarningsPerShareBasicAndDilutedEPSAbstract_983c3f18-ed4a-49e3-a98a-d34d568dc445" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_d3f5baeb-a320-4052-b6b2-c75651d1a97e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_8bff964c-d397-4284-9c77-025dc013d28d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_a7e34052-749c-44fa-a581-66334b6505ca" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_8bff964c-d397-4284-9c77-025dc013d28d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_3bbfbbb3-f3e2-4eca-bc2b-2996ee83e879" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_8bff964c-d397-4284-9c77-025dc013d28d" xlink:to="loc_us-gaap_NetIncomeLoss_3bbfbbb3-f3e2-4eca-bc2b-2996ee83e879" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_af307430-14de-4d4e-81de-048f034fb1c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_8bff964c-d397-4284-9c77-025dc013d28d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_af307430-14de-4d4e-81de-048f034fb1c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_bb0d1d63-9a5a-4654-b732-1bcbc4d3f01a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_8bff964c-d397-4284-9c77-025dc013d28d" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_bb0d1d63-9a5a-4654-b732-1bcbc4d3f01a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="fivn-20251231.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_b0d6dcb4-49e4-4711-b024-43577d3c2a67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_cbd2cb0b-0d72-4441-9224-1bc431b6dec0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_b0d6dcb4-49e4-4711-b024-43577d3c2a67" xlink:to="loc_us-gaap_StatementTable_cbd2cb0b-0d72-4441-9224-1bc431b6dec0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_42beb650-9d7f-4092-8ad8-11ef8f060d94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_cbd2cb0b-0d72-4441-9224-1bc431b6dec0" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_42beb650-9d7f-4092-8ad8-11ef8f060d94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_501408ee-4dc8-467b-a245-38ba3006ced8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_42beb650-9d7f-4092-8ad8-11ef8f060d94" xlink:to="loc_us-gaap_EquityComponentDomain_501408ee-4dc8-467b-a245-38ba3006ced8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_b16f34ef-2662-4b1a-bef7-42b9cfaf1a08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_501408ee-4dc8-467b-a245-38ba3006ced8" xlink:to="loc_us-gaap_CommonStockMember_b16f34ef-2662-4b1a-bef7-42b9cfaf1a08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_b8536fd6-dfd9-4f17-9e8d-eb08b3523b76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_501408ee-4dc8-467b-a245-38ba3006ced8" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_b8536fd6-dfd9-4f17-9e8d-eb08b3523b76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_b543af95-e1a2-4348-aac4-8b8c10d65472" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_501408ee-4dc8-467b-a245-38ba3006ced8" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_b543af95-e1a2-4348-aac4-8b8c10d65472" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_4bb0f953-2d82-4f9b-ac79-5ae5f05ea412" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_501408ee-4dc8-467b-a245-38ba3006ced8" xlink:to="loc_us-gaap_RetainedEarningsMember_4bb0f953-2d82-4f9b-ac79-5ae5f05ea412" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_87a59194-4cc5-4739-98df-207983f32afe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_cbd2cb0b-0d72-4441-9224-1bc431b6dec0" xlink:to="loc_us-gaap_StatementLineItems_87a59194-4cc5-4739-98df-207983f32afe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_87a59194-4cc5-4739-98df-207983f32afe" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_0c09f6a6-77a2-461f-a95b-b4c7e719e2de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesIssued"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_SharesIssued_0c09f6a6-77a2-461f-a95b-b4c7e719e2de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_a4616255-2337-466c-a510-86381bef4b21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_a4616255-2337-466c-a510-86381bef4b21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_de2c8dbb-ce85-4a41-9429-6ed496d1c090" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_de2c8dbb-ce85-4a41-9429-6ed496d1c090" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_cb74ed22-7077-4faa-8e9b-c643f29a7cc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_cb74ed22-7077-4faa-8e9b-c643f29a7cc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AdditionalPaidInCapitalSharesUnwindingOfCappedCallsFromConversionOfConvertibleSecurities_ff1765c4-b221-46f1-a9f6-80c16e25da43" xlink:href="fivn-20251231.xsd#fivn_AdditionalPaidInCapitalSharesUnwindingOfCappedCallsFromConversionOfConvertibleSecurities"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_fivn_AdditionalPaidInCapitalSharesUnwindingOfCappedCallsFromConversionOfConvertibleSecurities_ff1765c4-b221-46f1-a9f6-80c16e25da43" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AdditionalPaidInCapitalValueUnwindingOfCappedCallsFromConversionOfConvertibleSecurities_2700e69a-e123-402a-82fa-8ba2ab70bdf1" xlink:href="fivn-20251231.xsd#fivn_AdditionalPaidInCapitalValueUnwindingOfCappedCallsFromConversionOfConvertibleSecurities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_fivn_AdditionalPaidInCapitalValueUnwindingOfCappedCallsFromConversionOfConvertibleSecurities_2700e69a-e123-402a-82fa-8ba2ab70bdf1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019bdb5d-7bb0-733a-aecd-929407f7ce0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019bdb5d-7bb0-733a-aecd-929407f7ce0e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_019bdb5d-bc0b-7227-9861-7c3c8d153d7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_019bdb5d-bc0b-7227-9861-7c3c8d153d7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised_a76f4fb9-3dd1-4570-98fb-f54938c30add" xlink:href="fivn-20251231.xsd#fivn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_fivn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised_a76f4fb9-3dd1-4570-98fb-f54938c30add" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_StockIssuedDuringPeriodValueStockOptionsandWarrantsExercised_44b9dbdc-e34c-462d-b08d-a9f3231a5547" xlink:href="fivn-20251231.xsd#fivn_StockIssuedDuringPeriodValueStockOptionsandWarrantsExercised"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_fivn_StockIssuedDuringPeriodValueStockOptionsandWarrantsExercised_44b9dbdc-e34c-462d-b08d-a9f3231a5547" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_4934a67f-be25-4993-a318-2793e65a54de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_4934a67f-be25-4993-a318-2793e65a54de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_de391f0e-c54c-4f10-a75d-2ff3b0dd3529" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_de391f0e-c54c-4f10-a75d-2ff3b0dd3529" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_8d6937f7-a849-4cf9-920a-d8c93157c8fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_8d6937f7-a849-4cf9-920a-d8c93157c8fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_baa343dc-b5ce-4548-9766-84a4f0a35eb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_baa343dc-b5ce-4548-9766-84a4f0a35eb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_920117d3-3c88-446c-a879-efb09a2af546" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_920117d3-3c88-446c-a879-efb09a2af546" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_3134c344-7abf-4f0a-94ea-c9e65afca330" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_3134c344-7abf-4f0a-94ea-c9e65afca330" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_17acd181-956d-43a0-8569-4db60aef94d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_17acd181-956d-43a0-8569-4db60aef94d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_1ee54111-143d-4aec-8006-5be474c54c5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_1ee54111-143d-4aec-8006-5be474c54c5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c2bf67ab-c53c-43d1-94c8-3ae8e9618496" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_NetIncomeLoss_c2bf67ab-c53c-43d1-94c8-3ae8e9618496" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_149c679c-e7b6-4e1a-8e64-226b6e0a1a28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesIssued"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_SharesIssued_149c679c-e7b6-4e1a-8e64-226b6e0a1a28" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_61ff6f7c-14e8-4e3f-b39b-869358b45d83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_755352da-dce2-4f09-a401-28a256f6c8e5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_61ff6f7c-14e8-4e3f-b39b-869358b45d83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="fivn-20251231.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_6042b754-2e04-4b78-874d-35c42734a473" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_5eca7311-e0e4-4d19-965b-2a58d1bc2930" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_6042b754-2e04-4b78-874d-35c42734a473" xlink:to="loc_us-gaap_StatementTable_5eca7311-e0e4-4d19-965b-2a58d1bc2930" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019b0e31-527b-7c5a-8071-1a13efeb71c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5eca7311-e0e4-4d19-965b-2a58d1bc2930" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019b0e31-527b-7c5a-8071-1a13efeb71c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019b0e31-527b-7682-aab3-c72335214c36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019b0e31-527b-7c5a-8071-1a13efeb71c1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019b0e31-527b-7682-aab3-c72335214c36" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AcqueonInc.Member_019b0e31-527b-7fcd-9842-b312ac72ca4b" xlink:href="fivn-20251231.xsd#fivn_AcqueonInc.Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019b0e31-527b-7682-aab3-c72335214c36" xlink:to="loc_fivn_AcqueonInc.Member_019b0e31-527b-7fcd-9842-b312ac72ca4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AceyusIncMember_019b0e31-527b-7867-a5b6-9ff88de20eeb" xlink:href="fivn-20251231.xsd#fivn_AceyusIncMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019b0e31-527b-7682-aab3-c72335214c36" xlink:to="loc_fivn_AceyusIncMember_019b0e31-527b-7867-a5b6-9ff88de20eeb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019bda39-c5d5-7f94-bdcb-226cd0c5c709" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5eca7311-e0e4-4d19-965b-2a58d1bc2930" xlink:to="loc_us-gaap_DebtInstrumentAxis_019bda39-c5d5-7f94-bdcb-226cd0c5c709" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019bda39-c5d5-7583-8e6f-bc771ef8a2c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019bda39-c5d5-7f94-bdcb-226cd0c5c709" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019bda39-c5d5-7583-8e6f-bc771ef8a2c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2023Member_019bda3a-1f6c-7904-a1d6-94433d357f09" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019bda39-c5d5-7583-8e6f-bc771ef8a2c2" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2023Member_019bda3a-1f6c-7904-a1d6-94433d357f09" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2025Member_019bda3a-4a14-7b92-8a1b-c0d6bfc04093" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019bda39-c5d5-7583-8e6f-bc771ef8a2c2" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2025Member_019bda3a-4a14-7b92-8a1b-c0d6bfc04093" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5eca7311-e0e4-4d19-965b-2a58d1bc2930" xlink:to="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_d66e80cb-7356-407f-ba4d-3b5265933d1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_d66e80cb-7356-407f-ba4d-3b5265933d1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_99d933d8-deb4-457b-bae0-a28b65cbceb1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_d66e80cb-7356-407f-ba4d-3b5265933d1b" xlink:to="loc_us-gaap_NetIncomeLoss_99d933d8-deb4-457b-bae0-a28b65cbceb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_d66e80cb-7356-407f-ba4d-3b5265933d1b" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_93b0f4f1-9230-4f94-8bde-6ab03033dfe3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_93b0f4f1-9230-4f94-8bde-6ab03033dfe3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_cc4bb2a8-1f0c-4f82-9a93-348f6d8c231b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_cc4bb2a8-1f0c-4f82-9a93-348f6d8c231b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AmortizationOfDeferredContractAcquisitionCosts_1de55a15-3e81-4a1d-9b54-3f76f73b507b" xlink:href="fivn-20251231.xsd#fivn_AmortizationOfDeferredContractAcquisitionCosts"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_fivn_AmortizationOfDeferredContractAcquisitionCosts_1de55a15-3e81-4a1d-9b54-3f76f73b507b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_d6892992-9f21-4326-aa4e-56ced8a534ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_d6892992-9f21-4326-aa4e-56ced8a534ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_9128f4ef-0e19-4464-8903-10e476f01351" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_9128f4ef-0e19-4464-8903-10e476f01351" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_d95115e6-e21b-4a79-9c62-4d245f188823" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_ShareBasedCompensation_d95115e6-e21b-4a79-9c62-4d245f188823" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_65cde3c1-3c05-4bf3-b8d0-5a8060957e29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_65cde3c1-3c05-4bf3-b8d0-5a8060957e29" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_879bd1d9-ed09-4262-9390-0fbc0fd3f4c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_879bd1d9-ed09-4262-9390-0fbc0fd3f4c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_268cfc31-335a-4c5c-8ef8-99e6350ff1e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_268cfc31-335a-4c5c-8ef8-99e6350ff1e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_4f1e19e0-eacc-4d47-93bd-efc14838a9eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_4f1e19e0-eacc-4d47-93bd-efc14838a9eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionExpense_5cf67885-5f39-4692-8a64-571c03fbca79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccretionExpense"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_AccretionExpense_5cf67885-5f39-4692-8a64-571c03fbca79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DeferredIncomeTaxExpenseBenefitExcludingTaxBenefitFromAcquisition_43a88630-85cb-4a60-b462-f8cc5c7f8cd7" xlink:href="fivn-20251231.xsd#fivn_DeferredIncomeTaxExpenseBenefitExcludingTaxBenefitFromAcquisition"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_fivn_DeferredIncomeTaxExpenseBenefitExcludingTaxBenefitFromAcquisition_43a88630-85cb-4a60-b462-f8cc5c7f8cd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_TaxBenefitOfValuationAllowanceAssociatedWithAcquisition_180b7743-7358-4ddf-b931-e21001fda598" xlink:href="fivn-20251231.xsd#fivn_TaxBenefitOfValuationAllowanceAssociatedWithAcquisition"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_fivn_TaxBenefitOfValuationAllowanceAssociatedWithAcquisition_180b7743-7358-4ddf-b931-e21001fda598" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_61a8b604-5613-43c6-a75a-ca6a247156f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_61a8b604-5613-43c6-a75a-ca6a247156f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_e55f71cb-7e6e-4790-b06e-dcbc65a1812c" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_a7a21bd8-1b10-4200-89a8-edccd9daf2a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_a7a21bd8-1b10-4200-89a8-edccd9daf2a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2c30a6a0-3679-4f64-bd15-59772b3666c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2c30a6a0-3679-4f64-bd15-59772b3666c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_IncreaseDecreaseinCapitalizedContractCost_9d0097c8-5f26-4e3f-9e41-c0dd4938027f" xlink:href="fivn-20251231.xsd#fivn_IncreaseDecreaseinCapitalizedContractCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_fivn_IncreaseDecreaseinCapitalizedContractCost_9d0097c8-5f26-4e3f-9e41-c0dd4938027f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_b3b09465-5779-4609-9416-19635c56fe57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_b3b09465-5779-4609-9416-19635c56fe57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_3ebda637-b401-4c60-ae2c-c85fb83036f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_3ebda637-b401-4c60-ae2c-c85fb83036f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_d1fa1909-028d-49a5-8110-dfb34b08c2b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_d1fa1909-028d-49a5-8110-dfb34b08c2b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_1adac185-197f-4ed9-a2eb-74c2cf00142b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_1adac185-197f-4ed9-a2eb-74c2cf00142b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_af10828e-264c-4293-bd74-2e2f9cd57859" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019bda3e-090c-7830-bd75-c088913d0742" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_af10828e-264c-4293-bd74-2e2f9cd57859" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_394208c0-935b-418a-8c55-519e31c4d418" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_d66e80cb-7356-407f-ba4d-3b5265933d1b" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_394208c0-935b-418a-8c55-519e31c4d418" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_e9ee76de-a74a-4f2a-ac61-236753b3cc2a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_e9ee76de-a74a-4f2a-ac61-236753b3cc2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_fd809a84-8402-4b73-9f7b-c750a5314c73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_fd809a84-8402-4b73-9f7b-c750a5314c73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_02d823f4-887d-4b84-a895-c0f64e720ea4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_02d823f4-887d-4b84-a895-c0f64e720ea4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_709e6cb8-ed62-4e85-adcd-3f23e684b7ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_709e6cb8-ed62-4e85-adcd-3f23e684b7ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToDevelopSoftware_7ad87bc5-f7a3-4571-b08b-652b49c11f49" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToDevelopSoftware"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_PaymentsToDevelopSoftware_7ad87bc5-f7a3-4571-b08b-652b49c11f49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PaymentsOfInitialDirectCosts_019be359-cefd-71cc-8574-315be1fda081" xlink:href="fivn-20251231.xsd#fivn_PaymentsOfInitialDirectCosts"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_fivn_PaymentsOfInitialDirectCosts_019be359-cefd-71cc-8574-315be1fda081" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019b0e33-0384-7bdd-bec3-78e051a3bc05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019b0e33-0384-7bdd-bec3-78e051a3bc05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_8f319337-e053-4497-85d2-62189793b944" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_8f319337-e053-4497-85d2-62189793b944" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_b17d6eea-b659-43e6-aa98-6dd7a21c9104" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_edafa166-780c-415b-9d3a-fcbd895a0fe7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_b17d6eea-b659-43e6-aa98-6dd7a21c9104" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_beef9a35-17d9-4d25-b565-0102e95108a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_beef9a35-17d9-4d25-b565-0102e95108a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_2dc18a4d-6c90-4171-8de9-ca44374a7df0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_2dc18a4d-6c90-4171-8de9-ca44374a7df0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PaymentsForCappedCallTransactionsFinancingActivities_fdcf0f1d-7e54-45eb-8713-9df7bffff1dd" xlink:href="fivn-20251231.xsd#fivn_PaymentsForCappedCallTransactionsFinancingActivities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_fivn_PaymentsForCappedCallTransactionsFinancingActivities_fdcf0f1d-7e54-45eb-8713-9df7bffff1dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CashConsiderationToRepurchaseNote_0b8be8b8-3f3b-445a-8aeb-3527e94410ce" xlink:href="fivn-20251231.xsd#fivn_CashConsiderationToRepurchaseNote"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_fivn_CashConsiderationToRepurchaseNote_0b8be8b8-3f3b-445a-8aeb-3527e94410ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfSeniorDebt_b1c2e546-cf9c-4ee4-8b9d-162dc1a13f64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfSeniorDebt"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_RepaymentsOfSeniorDebt_b1c2e546-cf9c-4ee4-8b9d-162dc1a13f64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ProceedsFromSettlementOfTheOutstandingCappedCallsAssociatedWithConvertibleSeniorNotes_019bb219-f118-7bb7-a844-0413a1787e20" xlink:href="fivn-20251231.xsd#fivn_ProceedsFromSettlementOfTheOutstandingCappedCallsAssociatedWithConvertibleSeniorNotes"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_fivn_ProceedsFromSettlementOfTheOutstandingCappedCallsAssociatedWithConvertibleSeniorNotes_019bb219-f118-7bb7-a844-0413a1787e20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ProceedsFromPartialTerminationOfCappedCallsAssociatedWithConvertibleSeniorNotes_019ba7ac-29dc-7bc1-bd42-da7cad949f24" xlink:href="fivn-20251231.xsd#fivn_ProceedsFromPartialTerminationOfCappedCallsAssociatedWithConvertibleSeniorNotes"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_fivn_ProceedsFromPartialTerminationOfCappedCallsAssociatedWithConvertibleSeniorNotes_019ba7ac-29dc-7bc1-bd42-da7cad949f24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_3699ce63-9e9d-4f97-9ed9-6d2ffd54650a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_3699ce63-9e9d-4f97-9ed9-6d2ffd54650a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockPlans_0d997a7c-f5b9-4f23-b7d6-5230d4b5e5f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromStockPlans"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_ProceedsFromStockPlans_0d997a7c-f5b9-4f23-b7d6-5230d4b5e5f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_232bf703-fc89-43fc-8b57-6db3c296bd0b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_232bf703-fc89-43fc-8b57-6db3c296bd0b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019b2032-dac4-7c84-975b-dc9e28ff5871" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019b2032-dac4-7c84-975b-dc9e28ff5871" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PaymentOfHoldbackRelatedToAcquisitions_dfebdfc0-8efc-47fd-89bd-8f09bae0cc17" xlink:href="fivn-20251231.xsd#fivn_PaymentOfHoldbackRelatedToAcquisitions"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_fivn_PaymentOfHoldbackRelatedToAcquisitions_dfebdfc0-8efc-47fd-89bd-8f09bae0cc17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_73328896-c5ae-4eff-9d2f-1988d84a121d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_73328896-c5ae-4eff-9d2f-1988d84a121d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d4df3069-b91b-4918-88e5-a5c9d5369a72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_d92fb2fd-667d-46d7-af72-1b029b52d236" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d4df3069-b91b-4918-88e5-a5c9d5369a72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_b7c49f4b-f35c-4d61-8cf1-8d1e12b4506b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_b7c49f4b-f35c-4d61-8cf1-8d1e12b4506b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract_e632db52-3420-4ebd-9e01-3f6a1262ada4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract_e632db52-3420-4ebd-9e01-3f6a1262ada4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2c097b68-4841-4177-bb7b-24595436fde2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract_e632db52-3420-4ebd-9e01-3f6a1262ada4" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2c097b68-4841-4177-bb7b-24595436fde2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_8477f238-bb8a-4006-be87-ef3fa56eb312" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract_e632db52-3420-4ebd-9e01-3f6a1262ada4" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_8477f238-bb8a-4006-be87-ef3fa56eb312" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_cba70e59-b398-498c-ae67-e58c755863bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_cba70e59-b398-498c-ae67-e58c755863bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_668cf52d-9325-48b0-b39d-8ce307ca00a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPaidNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_cba70e59-b398-498c-ae67-e58c755863bb" xlink:to="loc_us-gaap_InterestPaidNet_668cf52d-9325-48b0-b39d-8ce307ca00a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaid_ef5608bd-4b1b-4444-9062-2646f7b7f87a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaid"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_cba70e59-b398-498c-ae67-e58c755863bb" xlink:to="loc_us-gaap_IncomeTaxesPaid_ef5608bd-4b1b-4444-9062-2646f7b7f87a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_24ac81d6-ea17-4a45-9ff8-377dc0a68cfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_24ac81d6-ea17-4a45-9ff8-377dc0a68cfe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_050668e8-7981-4cc1-b73a-19f6148e17f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_24ac81d6-ea17-4a45-9ff8-377dc0a68cfe" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_050668e8-7981-4cc1-b73a-19f6148e17f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CapitalizationOfLeaseholdImprovementThroughNonCashLeaseIncentive_b8835282-08fa-4f75-82c5-dcade2f5e16f" xlink:href="fivn-20251231.xsd#fivn_CapitalizationOfLeaseholdImprovementThroughNonCashLeaseIncentive"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_24ac81d6-ea17-4a45-9ff8-377dc0a68cfe" xlink:to="loc_fivn_CapitalizationOfLeaseholdImprovementThroughNonCashLeaseIncentive_b8835282-08fa-4f75-82c5-dcade2f5e16f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_NoncashOrPartNoncashAcquisitionTransactionCostsAccrued_fe682178-5660-45d5-911e-b76d3fe2dc09" xlink:href="fivn-20251231.xsd#fivn_NoncashOrPartNoncashAcquisitionTransactionCostsAccrued"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_24ac81d6-ea17-4a45-9ff8-377dc0a68cfe" xlink:to="loc_fivn_NoncashOrPartNoncashAcquisitionTransactionCostsAccrued_fe682178-5660-45d5-911e-b76d3fe2dc09" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_c7e593b0-073c-48f2-8adb-b135c652f522" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_24ac81d6-ea17-4a45-9ff8-377dc0a68cfe" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_c7e593b0-073c-48f2-8adb-b135c652f522" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_15e9d8c0-6edf-45e1-a930-1670e6ae036f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_0c7ac02e-0753-40de-919c-f7d30e60a06a" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_15e9d8c0-6edf-45e1-a930-1670e6ae036f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7ec24b70-8d4b-4aae-bb08-48d33fc6860a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_15e9d8c0-6edf-45e1-a930-1670e6ae036f" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7ec24b70-8d4b-4aae-bb08-48d33fc6860a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_5a0940f8-aaf2-4ecf-bfbf-2c86a933e6eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalents"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_15e9d8c0-6edf-45e1-a930-1670e6ae036f" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_5a0940f8-aaf2-4ecf-bfbf-2c86a933e6eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01c2a98e-d37e-460b-9618-aecd2bd20340" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_15e9d8c0-6edf-45e1-a930-1670e6ae036f" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01c2a98e-d37e-460b-9618-aecd2bd20340" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPolicies" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPolicies"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_a25f6e8d-ee00-4530-8f9d-d0587fe6c36d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_f1c48fa4-e0f3-4571-b94f-456c26c3d568" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_a25f6e8d-ee00-4530-8f9d-d0587fe6c36d" xlink:to="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_f1c48fa4-e0f3-4571-b94f-456c26c3d568" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/Revenue" xlink:type="simple" xlink:href="fivn-20251231.xsd#Revenue"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/Revenue" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_2000acbd-b584-4d0e-92c9-3f6e0ff374b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_4f7ee44a-58b3-462e-9700-142b474f0f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_2000acbd-b584-4d0e-92c9-3f6e0ff374b3" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_4f7ee44a-58b3-462e-9700-142b474f0f1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurements" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurements"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurements" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_eeb1b5c8-ad94-4386-9f51-3c2cb0028675" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_InvestmentsAndFairValueMeasurementsTextBlock_cac41e30-3994-4bda-8fed-d20677bc40b7" xlink:href="fivn-20251231.xsd#fivn_InvestmentsAndFairValueMeasurementsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_eeb1b5c8-ad94-4386-9f51-3c2cb0028675" xlink:to="loc_fivn_InvestmentsAndFairValueMeasurementsTextBlock_cac41e30-3994-4bda-8fed-d20677bc40b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponents" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponents"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponents" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c7df9777-0673-4d6c-9c27-52520aa14a58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_cfa1096c-ac9d-472b-b871-00866ca95a1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SupplementalBalanceSheetDisclosuresTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c7df9777-0673-4d6c-9c27-52520aa14a58" xlink:to="loc_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_cfa1096c-ac9d-472b-b871-00866ca95a1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/GoodwillandIntangibleAssets" xlink:type="simple" xlink:href="fivn-20251231.xsd#GoodwillandIntangibleAssets"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/GoodwillandIntangibleAssets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_c28246c5-4a01-4fe7-8e91-2ff1b9c1722e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_8be913e8-0f5c-4223-8e09-abe7c7c47c34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_c28246c5-4a01-4fe7-8e91-2ff1b9c1722e" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_8be913e8-0f5c-4223-8e09-abe7c7c47c34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/Debt" xlink:type="simple" xlink:href="fivn-20251231.xsd#Debt"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/Debt" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_bb3e5058-c3cb-444d-a60d-a13bf8894c2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_e0069a7e-5b0f-4649-8ceb-bd7300cf0aa7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_bb3e5058-c3cb-444d-a60d-a13bf8894c2c" xlink:to="loc_us-gaap_DebtDisclosureTextBlock_e0069a7e-5b0f-4649-8ceb-bd7300cf0aa7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquity" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquity"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_9e681d8c-cce1-4b97-9630-c3ed8551bb2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_0e97d68d-5f4b-435f-9cea-25adea2309ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_9e681d8c-cce1-4b97-9630-c3ed8551bb2e" xlink:to="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_0e97d68d-5f4b-435f-9cea-25adea2309ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/NetIncomeLossPerShare" xlink:type="simple" xlink:href="fivn-20251231.xsd#NetIncomeLossPerShare"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/NetIncomeLossPerShare" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_f99adef9-f15c-444d-a7e5-664ef65eee9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_2e316beb-4289-4471-a0c3-769d505f989b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_f99adef9-f15c-444d-a7e5-664ef65eee9e" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_2e316beb-4289-4471-a0c3-769d505f989b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxes" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxes"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_9bb8a8f8-259c-4d61-8dfc-180838001f17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_111d098d-559d-40b3-be29-ba7a096c40be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_9bb8a8f8-259c-4d61-8dfc-180838001f17" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_111d098d-559d-40b3-be29-ba7a096c40be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="fivn-20251231.xsd#CommitmentsandContingencies"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CommitmentsandContingencies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_7b9d9710-adb3-4b87-9073-d8f40c166b00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_e18b42e5-fa1f-480d-9044-9ffd5bcc4f82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_7b9d9710-adb3-4b87-9073-d8f40c166b00" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_e18b42e5-fa1f-480d-9044-9ffd5bcc4f82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SegmentandGeographicalInformation" xlink:type="simple" xlink:href="fivn-20251231.xsd#SegmentandGeographicalInformation"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SegmentandGeographicalInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_a381d06b-d399-4957-944b-f46e5d6b030b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_4b4d30c0-14a9-4225-9706-99a6321187ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_a381d06b-d399-4957-944b-f46e5d6b030b" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_4b4d30c0-14a9-4225-9706-99a6321187ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/RetirementPlans" xlink:type="simple" xlink:href="fivn-20251231.xsd#RetirementPlans"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/RetirementPlans" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_bb7e1565-27d5-470f-80d3-b517560c86c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_861017f6-796c-40e9-b64d-7f874c22082b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_bb7e1565-27d5-470f-80d3-b517560c86c7" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_861017f6-796c-40e9-b64d-7f874c22082b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/Leases" xlink:type="simple" xlink:href="fivn-20251231.xsd#Leases"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/Leases" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_12140300-97e7-4ccc-8777-afd2dff5d719" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeasesTextBlock_0399fc43-9889-4029-bbdf-b639c4dda373" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeasesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_12140300-97e7-4ccc-8777-afd2dff5d719" xlink:to="loc_us-gaap_LesseeOperatingLeasesTextBlock_0399fc43-9889-4029-bbdf-b639c4dda373" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeasesTextBlock_5f25357c-c9d6-4ab2-ae9c-97c7a5bbfd18" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeFinanceLeasesTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_12140300-97e7-4ccc-8777-afd2dff5d719" xlink:to="loc_us-gaap_LesseeFinanceLeasesTextBlock_5f25357c-c9d6-4ab2-ae9c-97c7a5bbfd18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/Acquisitions" xlink:type="simple" xlink:href="fivn-20251231.xsd#Acquisitions"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/Acquisitions" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_4f74bad1-c00e-4e65-93ac-20afb7ea9248" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_d31fcfc1-d657-4111-8057-9ee1e6dbd5f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_4f74bad1-c00e-4e65-93ac-20afb7ea9248" xlink:to="loc_us-gaap_BusinessCombinationDisclosureTextBlock_d31fcfc1-d657-4111-8057-9ee1e6dbd5f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/Restructuring" xlink:type="simple" xlink:href="fivn-20251231.xsd#Restructuring"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/Restructuring" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_18c9ac59-a4ed-4fbc-bb2c-7cd25c7c5a79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_2ed6ae80-3dbe-40d9-bcf7-c126f3499684" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_18c9ac59-a4ed-4fbc-bb2c-7cd25c7c5a79" xlink:to="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_2ed6ae80-3dbe-40d9-bcf7-c126f3499684" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnaudited" xlink:type="simple" xlink:href="fivn-20251231.xsd#SelectedQuarterlyFinancialDataUnaudited"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_f6bf69b6-9173-48ed-b2db-c32143ba863b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QuarterlyFinancialInformationTextBlock_0d90b965-cd09-4ee8-84d8-7eb4b7f36d44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_QuarterlyFinancialInformationTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_f6bf69b6-9173-48ed-b2db-c32143ba863b" xlink:to="loc_us-gaap_QuarterlyFinancialInformationTextBlock_0d90b965-cd09-4ee8-84d8-7eb4b7f36d44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPolicies"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_8f1cd6fc-7ad5-48ab-b3af-6b812bc82e02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_8f1cd6fc-7ad5-48ab-b3af-6b812bc82e02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_019c66eb-2b29-7c8b-be23-2018cd53ab7a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConsolidationPolicyTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_019c66eb-2b29-7c8b-be23-2018cd53ab7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates_88534a75-f81a-4da8-a6ad-97cf7e364cb3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UseOfEstimates"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_UseOfEstimates_88534a75-f81a-4da8-a6ad-97cf7e364cb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_067591de-bd7b-4d76-a6f6-3968f3601c92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_067591de-bd7b-4d76-a6f6-3968f3601c92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_834797da-e2b5-483a-add7-e995e385286f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_834797da-e2b5-483a-add7-e995e385286f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesPolicy_855a401a-3b7d-4a4f-b52f-c95845002b66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MarketableSecuritiesPolicy"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_MarketableSecuritiesPolicy_855a401a-3b7d-4a4f-b52f-c95845002b66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_a5de56f3-a907-4982-910a-c6e81485ccfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskCreditRisk"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_a5de56f3-a907-4982-910a-c6e81485ccfa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditLossFinancialInstrumentPolicyTextBlock_af2db65c-e899-4396-b9a9-bdf3b27c1ba9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditLossFinancialInstrumentPolicyTextBlock"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_CreditLossFinancialInstrumentPolicyTextBlock_af2db65c-e899-4396-b9a9-bdf3b27c1ba9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_db6fba44-38f1-4a6d-a835-2be639990556" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_db6fba44-38f1-4a6d-a835-2be639990556" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsPolicy_1e4ff265-9c83-4836-b1ba-68a6a04a1c10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationsPolicy"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_BusinessCombinationsPolicy_1e4ff265-9c83-4836-b1ba-68a6a04a1c10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_4233f31c-b7cf-48cb-8605-9c4a6ca20c5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_4233f31c-b7cf-48cb-8605-9c4a6ca20c5b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_34bbff58-e2d9-4dee-98f7-fa7f7316bba3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerPolicyTextBlock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_34bbff58-e2d9-4dee-98f7-fa7f7316bba3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpensePolicy_19578718-57b8-403e-b238-a1ce663bf1a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpensePolicy_19578718-57b8-403e-b238-a1ce663bf1a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingCostsPolicyTextBlock_71f87b17-759b-4b5a-85a1-ea79b5cf86c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdvertisingCostsPolicyTextBlock"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_AdvertisingCostsPolicyTextBlock_71f87b17-759b-4b5a-85a1-ea79b5cf86c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommissionsPolicy_16e1e3c3-1635-4dcc-84f1-ead78fc43e62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommissionsPolicy"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_CommissionsPolicy_16e1e3c3-1635-4dcc-84f1-ead78fc43e62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationRelatedCostsPolicyTextBlock_40ac12a2-d6c0-4a0e-b2c0-d5087a68cdf1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationRelatedCostsPolicyTextBlock"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_CompensationRelatedCostsPolicyTextBlock_40ac12a2-d6c0-4a0e-b2c0-d5087a68cdf1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_54e86161-7cff-40f8-bd09-c34815fc67ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPolicyTextBlock"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_54e86161-7cff-40f8-bd09-c34815fc67ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_269d1bd3-c97c-4a6d-ae5a-f0bd6440c9e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_269d1bd3-c97c-4a6d-ae5a-f0bd6440c9e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_f97ffb60-d566-45cf-bed1-9667f05f0fac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_f97ffb60-d566-45cf-bed1-9667f05f0fac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteesIndemnificationsAndWarrantiesPolicies_05891739-1b60-4bfe-8665-3a32446b1330" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GuaranteesIndemnificationsAndWarrantiesPolicies"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_GuaranteesIndemnificationsAndWarrantiesPolicies_05891739-1b60-4bfe-8665-3a32446b1330" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_fba48f0f-de06-42d1-b22e-e9ec840a9214" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_fba48f0f-de06-42d1-b22e-e9ec840a9214" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesPolicyTextBlock_cd55f3b4-a3c4-4457-bc73-2f13d0228914" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivablesPolicyTextBlock"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_ReceivablesPolicyTextBlock_cd55f3b4-a3c4-4457-bc73-2f13d0228914" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizationOfDeferredPolicyAcquisitionCostsPolicy_e973082a-a7b8-491f-8ae3-0d50c5210740" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizationOfDeferredPolicyAcquisitionCostsPolicy"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_0630fe0f-e8cc-418f-969c-6aaf9d455999" xlink:to="loc_us-gaap_CapitalizationOfDeferredPolicyAcquisitionCostsPolicy_e973082a-a7b8-491f-8ae3-0d50c5210740" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_01cf1114-6c1d-4ed9-895d-c603b613031b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock_2bca5f6a-c3f1-4d4f-adb9-11428ecc88f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_01cf1114-6c1d-4ed9-895d-c603b613031b" xlink:to="loc_us-gaap_ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock_2bca5f6a-c3f1-4d4f-adb9-11428ecc88f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EstimatedUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock_99d12eb6-829b-4210-ba6e-d8ae68f88acd" xlink:href="fivn-20251231.xsd#fivn_EstimatedUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_01cf1114-6c1d-4ed9-895d-c603b613031b" xlink:to="loc_fivn_EstimatedUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock_99d12eb6-829b-4210-ba6e-d8ae68f88acd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/RevenueTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#RevenueTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/RevenueTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_165d44a7-7b02-4dc1-996c-cee64389a658" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_a1b88fe5-79f5-4aae-a5bc-cc6329e80185" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_165d44a7-7b02-4dc1-996c-cee64389a658" xlink:to="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_a1b88fe5-79f5-4aae-a5bc-cc6329e80185" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurementsTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurementsTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurementsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_c6f67aa3-82a5-49ec-b4d1-071a4dc01d76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock_909d3c83-c465-4e3b-a3aa-23c0fa5b1900" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_c6f67aa3-82a5-49ec-b4d1-071a4dc01d76" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock_909d3c83-c465-4e3b-a3aa-23c0fa5b1900" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock_aeb7b773-2d12-48d2-b745-c7e4adb1457d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_c6f67aa3-82a5-49ec-b4d1-071a4dc01d76" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock_aeb7b773-2d12-48d2-b745-c7e4adb1457d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_53e96b1f-788b-4e8e-92ad-84f59b3d2cb8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_c6f67aa3-82a5-49ec-b4d1-071a4dc01d76" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_53e96b1f-788b-4e8e-92ad-84f59b3d2cb8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock_2a25e25e-6569-4897-a023-3c0b4b124436" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock_2a25e25e-6569-4897-a023-3c0b4b124436" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_0219ac36-8730-4fd1-b8a6-c25e0d00eab2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_0219ac36-8730-4fd1-b8a6-c25e0d00eab2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock_d320422b-65b4-438d-877a-c84cbc519cac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock_d320422b-65b4-438d-877a-c84cbc519cac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_348c3e49-ec1b-473d-bc32-392f59f79d56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_348c3e49-ec1b-473d-bc32-392f59f79d56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_ff3f558c-dc90-48aa-96b8-dfe56618c312" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_ff3f558c-dc90-48aa-96b8-dfe56618c312" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCurrentLiabilitiesTableTextBlock_5f915bea-da2f-4c2a-9d6f-d75c3a54dcce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCurrentLiabilitiesTableTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_OtherCurrentLiabilitiesTableTextBlock_5f915bea-da2f-4c2a-9d6f-d75c3a54dcce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesTableTextBlock_3c583c91-482f-441b-99a7-5f1870835f81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncurrentLiabilitiesTableTextBlock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_86e67554-f47d-466a-a8e4-9b28ffacf659" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesTableTextBlock_3c583c91-482f-441b-99a7-5f1870835f81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/GoodwillandIntangibleAssetsTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#GoodwillandIntangibleAssetsTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/GoodwillandIntangibleAssetsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_b7a9ac50-0900-486c-8143-4c2543e14a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_fca63c36-9cc3-412f-a2ae-2fb941163e97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_b7a9ac50-0900-486c-8143-4c2543e14a7c" xlink:to="loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_fca63c36-9cc3-412f-a2ae-2fb941163e97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock_eaa65950-ca9a-4837-a877-c79f9d08b358" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_b7a9ac50-0900-486c-8143-4c2543e14a7c" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock_eaa65950-ca9a-4837-a877-c79f9d08b358" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_0b154fcf-97df-4ef8-8f78-c4251d1af198" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_b7a9ac50-0900-486c-8143-4c2543e14a7c" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_0b154fcf-97df-4ef8-8f78-c4251d1af198" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DebtTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#DebtTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DebtTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019b1138-4d15-765e-83eb-5f92b853c152" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019b1138-4d15-76d4-8c06-49d39bf460f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019b1138-4d15-765e-83eb-5f92b853c152" xlink:to="loc_us-gaap_DebtInstrumentTable_019b1138-4d15-76d4-8c06-49d39bf460f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019b1138-4d15-7c8b-904c-8c4af9acdde0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019b1138-4d15-76d4-8c06-49d39bf460f2" xlink:to="loc_us-gaap_DebtInstrumentAxis_019b1138-4d15-7c8b-904c-8c4af9acdde0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019b1138-4d15-7c93-972d-888f8d529fba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019b1138-4d15-7c8b-904c-8c4af9acdde0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019b1138-4d15-7c93-972d-888f8d529fba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2029Member_019b1138-4d15-758b-a968-01835b29f057" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2029Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b1138-4d15-7c93-972d-888f8d529fba" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2029Member_019b1138-4d15-758b-a968-01835b29f057" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2025Member_019b1138-4d15-705f-8abc-b156dbd10d89" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b1138-4d15-7c93-972d-888f8d529fba" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2025Member_019b1138-4d15-705f-8abc-b156dbd10d89" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019b1138-4d15-7e6a-93a6-f86c7adfe3bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019b1138-4d15-76d4-8c06-49d39bf460f2" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019b1138-4d15-7e6a-93a6-f86c7adfe3bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtTableTextBlock_019b1138-4d15-79f1-b5a8-fa067e6bf127" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b1138-4d15-7e6a-93a6-f86c7adfe3bf" xlink:to="loc_us-gaap_ConvertibleDebtTableTextBlock_019b1138-4d15-79f1-b5a8-fa067e6bf127" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_019b1138-4d15-7899-a5d2-df065e256bd0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b1138-4d15-7e6a-93a6-f86c7adfe3bf" xlink:to="loc_us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_019b1138-4d15-7899-a5d2-df065e256bd0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_SummaryofCommonStockReservedforFutureIssuanceTableTextBlock_149360df-c290-47aa-b331-f7d2f72364d4" xlink:href="fivn-20251231.xsd#fivn_SummaryofCommonStockReservedforFutureIssuanceTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_fivn_SummaryofCommonStockReservedforFutureIssuanceTableTextBlock_149360df-c290-47aa-b331-f7d2f72364d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_4146c6b9-6d6c-4deb-8441-74a82bbbc35c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_4146c6b9-6d6c-4deb-8441-74a82bbbc35c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_0292a20f-854d-4fcf-8235-ca2adf43effa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_0292a20f-854d-4fcf-8235-ca2adf43effa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_b21363ef-d235-41d9-931c-434d685523b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_b21363ef-d235-41d9-931c-434d685523b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock_ed50135d-725d-463f-9cdb-bdd00eb8b505" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock_ed50135d-725d-463f-9cdb-bdd00eb8b505" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_93c48c7c-b698-4a45-ad3e-1aac230fda75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_93c48c7c-b698-4a45-ad3e-1aac230fda75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_ec882509-3d3e-48df-b1fd-a4f6f9b02040" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ba16e239-cf64-40be-93b8-4bce95e0b824" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_ec882509-3d3e-48df-b1fd-a4f6f9b02040" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/NetIncomeLossPerShareTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#NetIncomeLossPerShareTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/NetIncomeLossPerShareTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_59e05bdd-7c7d-485a-a1f3-4c7826f2a848" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_d02d2319-0737-40af-9a30-17159809d299" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_59e05bdd-7c7d-485a-a1f3-4c7826f2a848" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_d02d2319-0737-40af-9a30-17159809d299" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_8147fe1c-a6c0-4795-a45f-14da68646a3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_59e05bdd-7c7d-485a-a1f3-4c7826f2a848" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_8147fe1c-a6c0-4795-a45f-14da68646a3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_b53092b2-ac6a-4723-8606-f9d800b9659b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:to="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_b53092b2-ac6a-4723-8606-f9d800b9659b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_89cfc56b-0a45-4c2f-8315-aca1c72418ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_89cfc56b-0a45-4c2f-8315-aca1c72418ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_4c275956-037a-43b6-be31-74c9c188f4ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_4c275956-037a-43b6-be31-74c9c188f4ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_11ff41cb-a0a0-4da0-86a6-33c9ef6378d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_11ff41cb-a0a0-4da0-86a6-33c9ef6378d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_7c276ed4-35b8-4922-b384-a4bb551dbc24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:to="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_7c276ed4-35b8-4922-b384-a4bb551dbc24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_019c1ec2-556c-7386-9c49-eaf53615c5f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2515d782-3f86-4108-b22f-8c040ce690c3" xlink:to="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_019c1ec2-556c-7386-9c49-eaf53615c5f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CommitmentsandContingenciesTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#CommitmentsandContingenciesTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CommitmentsandContingenciesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2b8e1eaa-ee1a-4996-94a9-37c6b8f75e14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_a94a01e2-f3de-4b95-a63a-f1a50e3279a9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2b8e1eaa-ee1a-4996-94a9-37c6b8f75e14" xlink:to="loc_srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_a94a01e2-f3de-4b95-a63a-f1a50e3279a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SegmentandGeographicalInformationTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#SegmentandGeographicalInformationTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SegmentandGeographicalInformationTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_a73d5004-4cc3-49c3-9335-de25ee882afb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock_6b21669e-4202-4a69-bfde-a08e4cafbbe6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_a73d5004-4cc3-49c3-9335-de25ee882afb" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock_6b21669e-4202-4a69-bfde-a08e4cafbbe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_1df3bc86-fae3-4a0a-8d99-1353663a88bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_a73d5004-4cc3-49c3-9335-de25ee882afb" xlink:to="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_1df3bc86-fae3-4a0a-8d99-1353663a88bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/LeasesTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#LeasesTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/LeasesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_734c9720-5eb2-497d-9b90-7db388ef96cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostTableTextBlock_8be9e527-0a7a-4c5b-a4ae-f477a2057ad9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseCostTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_734c9720-5eb2-497d-9b90-7db388ef96cb" xlink:to="loc_us-gaap_LeaseCostTableTextBlock_8be9e527-0a7a-4c5b-a4ae-f477a2057ad9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ScheduleOfBalanceSheetInformationRelatedtoLeasesTableTextBlock_5e4053f6-cb5f-4a55-b04f-aeacbdf2f9b8" xlink:href="fivn-20251231.xsd#fivn_ScheduleOfBalanceSheetInformationRelatedtoLeasesTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_734c9720-5eb2-497d-9b90-7db388ef96cb" xlink:to="loc_fivn_ScheduleOfBalanceSheetInformationRelatedtoLeasesTableTextBlock_5e4053f6-cb5f-4a55-b04f-aeacbdf2f9b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_bb30806f-7e6f-4d20-a1ab-1aa18139a398" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_734c9720-5eb2-497d-9b90-7db388ef96cb" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_bb30806f-7e6f-4d20-a1ab-1aa18139a398" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_2c8c4921-8105-4190-9b9d-0a8102329ca9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_734c9720-5eb2-497d-9b90-7db388ef96cb" xlink:to="loc_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_2c8c4921-8105-4190-9b9d-0a8102329ca9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/AcquisitionsTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#AcquisitionsTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/AcquisitionsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_b1d9f723-0234-4131-91bc-d8288705f024" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_784e4fea-ff29-41fd-a942-4a72e27ac1c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_b1d9f723-0234-4131-91bc-d8288705f024" xlink:to="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_784e4fea-ff29-41fd-a942-4a72e27ac1c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedTables" xlink:type="simple" xlink:href="fivn-20251231.xsd#SelectedQuarterlyFinancialDataUnauditedTables"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_1533dd7f-13c5-41d6-8888-f21d56f73148" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_c7a10bbb-89b9-4fb6-abcd-9900ac0b4bfc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_1533dd7f-13c5-41d6-8888-f21d56f73148" xlink:to="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_c7a10bbb-89b9-4fb6-abcd-9900ac0b4bfc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesConcentrationRisksDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesConcentrationRisksDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesConcentrationRisksDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_b6392fd5-c93f-4bfc-b49a-456599c0a43a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_1aea4daf-a8ca-4388-b6fc-26968dfbfe97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_b6392fd5-c93f-4bfc-b49a-456599c0a43a" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_1aea4daf-a8ca-4388-b6fc-26968dfbfe97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_ad961793-51cb-4664-9068-1508529a25d4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_1aea4daf-a8ca-4388-b6fc-26968dfbfe97" xlink:to="loc_srt_MajorCustomersAxis_ad961793-51cb-4664-9068-1508529a25d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_a2c84c61-3cf4-4cc6-bbb1-1c8d6b20ac90" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_MajorCustomersAxis_ad961793-51cb-4664-9068-1508529a25d4" xlink:to="loc_srt_NameOfMajorCustomerDomain_a2c84c61-3cf4-4cc6-bbb1-1c8d6b20ac90" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_OneCustomerMember_43c0de5a-3830-442a-bda2-883919c16b3c" xlink:href="fivn-20251231.xsd#fivn_OneCustomerMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_a2c84c61-3cf4-4cc6-bbb1-1c8d6b20ac90" xlink:to="loc_fivn_OneCustomerMember_43c0de5a-3830-442a-bda2-883919c16b3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_1dbd7d7e-91ae-4ecc-8280-fea5edc25c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_1aea4daf-a8ca-4388-b6fc-26968dfbfe97" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_1dbd7d7e-91ae-4ecc-8280-fea5edc25c3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2186fc65-b8c8-42c3-b8cf-3c8e5e25a9f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_1dbd7d7e-91ae-4ecc-8280-fea5edc25c3c" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2186fc65-b8c8-42c3-b8cf-3c8e5e25a9f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableMember_adcb2875-513f-4d99-8bbe-2c3d24f84827" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2186fc65-b8c8-42c3-b8cf-3c8e5e25a9f2" xlink:to="loc_us-gaap_AccountsReceivableMember_adcb2875-513f-4d99-8bbe-2c3d24f84827" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_a59c8076-0f74-4fcc-a7a5-e170ff86c5c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_1aea4daf-a8ca-4388-b6fc-26968dfbfe97" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_a59c8076-0f74-4fcc-a7a5-e170ff86c5c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_36c4a99f-7cc2-4517-a755-d1816e638dc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_a59c8076-0f74-4fcc-a7a5-e170ff86c5c2" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_36c4a99f-7cc2-4517-a755-d1816e638dc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_0814e9e8-a204-4170-a3c6-6174546290f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_36c4a99f-7cc2-4517-a755-d1816e638dc3" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_0814e9e8-a204-4170-a3c6-6174546290f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_2ebc2d2d-4d03-448b-8887-6bcdcd3dc684" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_1aea4daf-a8ca-4388-b6fc-26968dfbfe97" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_2ebc2d2d-4d03-448b-8887-6bcdcd3dc684" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_NumberOfFinancialInstitutionsWhereCashIsHeld_35de34ee-a2fb-4f8a-b73d-bff16b788e9f" xlink:href="fivn-20251231.xsd#fivn_NumberOfFinancialInstitutionsWhereCashIsHeld"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_2ebc2d2d-4d03-448b-8887-6bcdcd3dc684" xlink:to="loc_fivn_NumberOfFinancialInstitutionsWhereCashIsHeld_35de34ee-a2fb-4f8a-b73d-bff16b788e9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashUninsuredAmount_28754575-ad8f-4488-92ed-fcbf38100ccb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashUninsuredAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_2ebc2d2d-4d03-448b-8887-6bcdcd3dc684" xlink:to="loc_us-gaap_CashUninsuredAmount_28754575-ad8f-4488-92ed-fcbf38100ccb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_784d19a1-6b79-48a6-9a01-dacf7a1eea80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_2ebc2d2d-4d03-448b-8887-6bcdcd3dc684" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_784d19a1-6b79-48a6-9a01-dacf7a1eea80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesScheduleofAllowanceforDoubtfulAccountsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesScheduleofAllowanceforDoubtfulAccountsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesScheduleofAllowanceforDoubtfulAccountsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_f0031525-8a2e-44dc-9030-dda275d6c1a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_99a5e0e7-2d3b-42fa-a05e-6b52863532e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_f0031525-8a2e-44dc-9030-dda275d6c1a9" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_99a5e0e7-2d3b-42fa-a05e-6b52863532e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_15be0647-ea56-4199-9888-03883709c78c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_99a5e0e7-2d3b-42fa-a05e-6b52863532e6" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_15be0647-ea56-4199-9888-03883709c78c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_3d71f7bd-6bae-49bb-815a-75a7e36ffb3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_99a5e0e7-2d3b-42fa-a05e-6b52863532e6" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_3d71f7bd-6bae-49bb-815a-75a7e36ffb3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AccountsReceivableAllowanceForCreditLossWriteOffsNetOfRecoveries_d2707869-68a2-47f7-80a8-29e07a0acc3b" xlink:href="fivn-20251231.xsd#fivn_AccountsReceivableAllowanceForCreditLossWriteOffsNetOfRecoveries"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_99a5e0e7-2d3b-42fa-a05e-6b52863532e6" xlink:to="loc_fivn_AccountsReceivableAllowanceForCreditLossWriteOffsNetOfRecoveries_d2707869-68a2-47f7-80a8-29e07a0acc3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_012a8072-df68-420b-ae4b-7ef159fae6d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_99a5e0e7-2d3b-42fa-a05e-6b52863532e6" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_012a8072-df68-420b-ae4b-7ef159fae6d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesScheduleofPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesScheduleofPropertyandEquipmentNetDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesScheduleofPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_c29f0c8a-1499-4d58-bd7c-df9efe0a4a99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5510fdd5-8c9e-43b0-b52a-6dde2160cae9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_c29f0c8a-1499-4d58-bd7c-df9efe0a4a99" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5510fdd5-8c9e-43b0-b52a-6dde2160cae9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019c694f-3638-7ea9-a4d2-6645e2789253" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5510fdd5-8c9e-43b0-b52a-6dde2160cae9" xlink:to="loc_srt_RangeAxis_019c694f-3638-7ea9-a4d2-6645e2789253" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c694f-3638-7ba7-b4d3-a2bbd61ca609" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019c694f-3638-7ea9-a4d2-6645e2789253" xlink:to="loc_srt_RangeMember_019c694f-3638-7ba7-b4d3-a2bbd61ca609" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019c6950-d468-7b04-97f1-5e4caa08c5b8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019c694f-3638-7ba7-b4d3-a2bbd61ca609" xlink:to="loc_srt_MinimumMember_019c6950-d468-7b04-97f1-5e4caa08c5b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019c6950-f951-7b46-a432-0017bcf4980f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019c694f-3638-7ba7-b4d3-a2bbd61ca609" xlink:to="loc_srt_MaximumMember_019c6950-f951-7b46-a432-0017bcf4980f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_47977fc4-ff15-43c6-9eb1-fecd7afbedd7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5510fdd5-8c9e-43b0-b52a-6dde2160cae9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_47977fc4-ff15-43c6-9eb1-fecd7afbedd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_b7910d0c-2741-49d7-9ef3-e62836254152" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_47977fc4-ff15-43c6-9eb1-fecd7afbedd7" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_b7910d0c-2741-49d7-9ef3-e62836254152" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_019c6950-8dad-7f8c-a893-b97246969406" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_b7910d0c-2741-49d7-9ef3-e62836254152" xlink:to="loc_us-gaap_ComputerEquipmentMember_019c6950-8dad-7f8c-a893-b97246969406" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ComputerSoftwareMember_019c4cf5-e42c-709e-9fb5-18d0d00ecf54" xlink:href="fivn-20251231.xsd#fivn_ComputerSoftwareMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_b7910d0c-2741-49d7-9ef3-e62836254152" xlink:to="loc_fivn_ComputerSoftwareMember_019c4cf5-e42c-709e-9fb5-18d0d00ecf54" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_02ad4151-86f2-4357-a873-af783b16e17c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_b7910d0c-2741-49d7-9ef3-e62836254152" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_02ad4151-86f2-4357-a873-af783b16e17c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_cbedadfb-aecb-4368-b092-d87c89e650f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_b7910d0c-2741-49d7-9ef3-e62836254152" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_cbedadfb-aecb-4368-b092-d87c89e650f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_32827bef-3245-4ce7-b544-0b643f663528" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5510fdd5-8c9e-43b0-b52a-6dde2160cae9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_32827bef-3245-4ce7-b544-0b643f663528" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_686d9ede-c2fa-4ea2-b8ee-e4dbab72114c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_32827bef-3245-4ce7-b544-0b643f663528" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_686d9ede-c2fa-4ea2-b8ee-e4dbab72114c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPropertyandEquipmentNetDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_019b0e5b-1b1e-7365-a21a-eecdb05848ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e5b-1b1e-7acd-ab99-5e3a70c4c590" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019b0e5b-1b1e-7365-a21a-eecdb05848ae" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e5b-1b1e-7acd-ab99-5e3a70c4c590" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0e5b-1b1e-7393-af76-3ae3e0bfc90c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e5b-1b1e-7acd-ab99-5e3a70c4c590" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0e5b-1b1e-7393-af76-3ae3e0bfc90c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0e5b-1b1e-790e-9e39-93a7f1b9224d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0e5b-1b1e-7393-af76-3ae3e0bfc90c" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0e5b-1b1e-790e-9e39-93a7f1b9224d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_019b0e5b-1b1e-7a0b-8eea-31ed1eecd2ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0e5b-1b1e-790e-9e39-93a7f1b9224d" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_019b0e5b-1b1e-7a0b-8eea-31ed1eecd2ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_019b0e5b-1b1e-7839-994e-03d9c19b6f9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0e5b-1b1e-790e-9e39-93a7f1b9224d" xlink:to="loc_us-gaap_BuildingMember_019b0e5b-1b1e-7839-994e-03d9c19b6f9d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_LeaseholdImprovementsAndPropertyAndEquipmentMember_019b0e5b-1b1e-7c72-bf3c-86672bbc1370" xlink:href="fivn-20251231.xsd#fivn_LeaseholdImprovementsAndPropertyAndEquipmentMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0e5b-1b1e-790e-9e39-93a7f1b9224d" xlink:to="loc_fivn_LeaseholdImprovementsAndPropertyAndEquipmentMember_019b0e5b-1b1e-7c72-bf3c-86672bbc1370" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e5b-1b1e-7c55-afa6-7f112fcd914f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e5b-1b1e-7acd-ab99-5e3a70c4c590" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e5b-1b1e-7c55-afa6-7f112fcd914f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019b0e5b-1b1e-772e-ba31-efa8853e928b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e5b-1b1e-7c55-afa6-7f112fcd914f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019b0e5b-1b1e-772e-ba31-efa8853e928b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_019b0e5b-1b1e-7098-ae0b-e017892aaa3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e5b-1b1e-7c55-afa6-7f112fcd914f" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_019b0e5b-1b1e-7098-ae0b-e017892aaa3a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_OperatingLeaseNumberOfLeaseFacilitiesClosed_019b0e5b-1b1e-776c-8081-723e7e10a7dd" xlink:href="fivn-20251231.xsd#fivn_OperatingLeaseNumberOfLeaseFacilitiesClosed"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e5b-1b1e-7c55-afa6-7f112fcd914f" xlink:to="loc_fivn_OperatingLeaseNumberOfLeaseFacilitiesClosed_019b0e5b-1b1e-776c-8081-723e7e10a7dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TangibleAssetImpairmentCharges_019b0e5b-1b1e-73e3-bd47-9255097fde2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TangibleAssetImpairmentCharges"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e5b-1b1e-7c55-afa6-7f112fcd914f" xlink:to="loc_us-gaap_TangibleAssetImpairmentCharges_019b0e5b-1b1e-73e3-bd47-9255097fde2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesGoodwillandIntangibleAssetsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesGoodwillandIntangibleAssetsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesGoodwillandIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_2b482427-912a-484a-b130-d54e56445033" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e54-7ab2-7dbb-8a28-dd68ad9e5173" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_2b482427-912a-484a-b130-d54e56445033" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e54-7ab2-7dbb-8a28-dd68ad9e5173" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019b0e54-7ab2-785c-bd89-7449209bf217" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e54-7ab2-7dbb-8a28-dd68ad9e5173" xlink:to="loc_srt_RangeAxis_019b0e54-7ab2-785c-bd89-7449209bf217" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0e54-7ab2-7223-87ec-f9daf3243d96" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019b0e54-7ab2-785c-bd89-7449209bf217" xlink:to="loc_srt_RangeMember_019b0e54-7ab2-7223-87ec-f9daf3243d96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019b0e54-7ab2-7f36-ba18-509d40f995f4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019b0e54-7ab2-7223-87ec-f9daf3243d96" xlink:to="loc_srt_MinimumMember_019b0e54-7ab2-7f36-ba18-509d40f995f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019b0e54-7ab2-71af-ab7e-f19808bf80c5" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019b0e54-7ab2-7223-87ec-f9daf3243d96" xlink:to="loc_srt_MaximumMember_019b0e54-7ab2-71af-ab7e-f19808bf80c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e54-7ab2-7bd4-9ee4-d069fdaddbf3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0e54-7ab2-7dbb-8a28-dd68ad9e5173" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e54-7ab2-7bd4-9ee4-d069fdaddbf3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019b0e54-7ab2-7b5a-9517-0ba17a803fd1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0e54-7ab2-7bd4-9ee4-d069fdaddbf3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019b0e54-7ab2-7b5a-9517-0ba17a803fd1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesAdvertisingCostsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesAdvertisingCostsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesAdvertisingCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_c16e3bec-2bfd-46e3-8524-c840cc3634f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_6de43664-bd6e-416a-a43a-046f3af5e1bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdvertisingExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_c16e3bec-2bfd-46e3-8524-c840cc3634f0" xlink:to="loc_us-gaap_AdvertisingExpense_6de43664-bd6e-416a-a43a-046f3af5e1bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesCommissionsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesCommissionsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesCommissionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_a0f4ff1d-cb3e-4c31-bf2b-7249dd4d08f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_d231df19-9c0b-415e-b9d6-649f83ec4cbc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostAmortizationPeriod"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_a0f4ff1d-cb3e-4c31-bf2b-7249dd4d08f5" xlink:to="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_d231df19-9c0b-415e-b9d6-649f83ec4cbc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesCommissionsAndFees_b13870a3-024a-4b79-9fdb-6e824cc18f27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesCommissionsAndFees"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_a0f4ff1d-cb3e-4c31-bf2b-7249dd4d08f5" xlink:to="loc_us-gaap_SalesCommissionsAndFees_b13870a3-024a-4b79-9fdb-6e824cc18f27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesIncomeTaxesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesIncomeTaxesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_98798c0b-a581-4c84-aaa9-4658738a8187" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardTable_c66bcb30-ab62-41cb-bd05-7aada025d417" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_98798c0b-a581-4c84-aaa9-4658738a8187" xlink:to="loc_us-gaap_TaxCreditCarryforwardTable_c66bcb30-ab62-41cb-bd05-7aada025d417" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameAxis_aefc31df-2b4b-402c-a2f9-1774753e1ddf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardTable_c66bcb30-ab62-41cb-bd05-7aada025d417" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameAxis_aefc31df-2b4b-402c-a2f9-1774753e1ddf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_a455a2df-56bd-4e0a-8e1d-9d7751615fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_aefc31df-2b4b-402c-a2f9-1774753e1ddf" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameDomain_a455a2df-56bd-4e0a-8e1d-9d7751615fa5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AustralianGermanyIndiaAndUKTaxationOfficeMember_82b246e1-7eab-4ac7-92fc-ace98d73f405" xlink:href="fivn-20251231.xsd#fivn_AustralianGermanyIndiaAndUKTaxationOfficeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameDomain_a455a2df-56bd-4e0a-8e1d-9d7751615fa5" xlink:to="loc_fivn_AustralianGermanyIndiaAndUKTaxationOfficeMember_82b246e1-7eab-4ac7-92fc-ace98d73f405" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardLineItems_aac9f3c1-21e1-42a4-97ce-d76a06836f46" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardTable_c66bcb30-ab62-41cb-bd05-7aada025d417" xlink:to="loc_us-gaap_TaxCreditCarryforwardLineItems_aac9f3c1-21e1-42a4-97ce-d76a06836f46" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_27c86613-2acb-4151-ab37-d3d76b35d3b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardLineItems_aac9f3c1-21e1-42a4-97ce-d76a06836f46" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_27c86613-2acb-4151-ab37-d3d76b35d3b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/RevenueScheduleofContractBalancesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#RevenueScheduleofContractBalancesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/RevenueScheduleofContractBalancesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f01e102c-53fd-4fee-922e-b5392c6174ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_803e9346-255e-41ff-9084-33017dc70f14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f01e102c-53fd-4fee-922e-b5392c6174ca" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_803e9346-255e-41ff-9084-33017dc70f14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetClassifiedAbstract_0e7888d6-11b5-49da-ae06-f30b92cb9dfd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostNetClassifiedAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f01e102c-53fd-4fee-922e-b5392c6174ca" xlink:to="loc_us-gaap_CapitalizedContractCostNetClassifiedAbstract_0e7888d6-11b5-49da-ae06-f30b92cb9dfd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetCurrent_43802d84-93bd-4649-95ea-5a262cd996ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostNetCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostNetClassifiedAbstract_0e7888d6-11b5-49da-ae06-f30b92cb9dfd" xlink:to="loc_us-gaap_CapitalizedContractCostNetCurrent_43802d84-93bd-4649-95ea-5a262cd996ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetNoncurrent_e858a5b0-9d1c-437f-b36c-5c0881d9f19f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostNetNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostNetClassifiedAbstract_0e7888d6-11b5-49da-ae06-f30b92cb9dfd" xlink:to="loc_us-gaap_CapitalizedContractCostNetNoncurrent_e858a5b0-9d1c-437f-b36c-5c0881d9f19f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNet_dca39b8d-d07e-4afb-a8c2-1000641ab44d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostNetClassifiedAbstract_0e7888d6-11b5-49da-ae06-f30b92cb9dfd" xlink:to="loc_us-gaap_CapitalizedContractCostNet_dca39b8d-d07e-4afb-a8c2-1000641ab44d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ContractAssetLiabilityAbstract_6aed8b9b-b6c9-4ad7-9cf3-98fc4464ab22" xlink:href="fivn-20251231.xsd#fivn_ContractAssetLiabilityAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f01e102c-53fd-4fee-922e-b5392c6174ca" xlink:to="loc_fivn_ContractAssetLiabilityAbstract_6aed8b9b-b6c9-4ad7-9cf3-98fc4464ab22" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_52a30232-b005-47d5-b48d-c5a4c4a5c6a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_ContractAssetLiabilityAbstract_6aed8b9b-b6c9-4ad7-9cf3-98fc4464ab22" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_52a30232-b005-47d5-b48d-c5a4c4a5c6a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_88fb72a8-0293-49a7-b63b-7c495899c9c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_ContractAssetLiabilityAbstract_6aed8b9b-b6c9-4ad7-9cf3-98fc4464ab22" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_88fb72a8-0293-49a7-b63b-7c495899c9c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_4ae8743c-bad1-47b7-abe8-904b4d2102d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_ContractAssetLiabilityAbstract_6aed8b9b-b6c9-4ad7-9cf3-98fc4464ab22" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_4ae8743c-bad1-47b7-abe8-904b4d2102d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ContractwithCustomerAssetLiabilityNet_a39f2695-5e1a-4a58-be1b-79eade7242ea" xlink:href="fivn-20251231.xsd#fivn_ContractwithCustomerAssetLiabilityNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_ContractAssetLiabilityAbstract_6aed8b9b-b6c9-4ad7-9cf3-98fc4464ab22" xlink:to="loc_fivn_ContractwithCustomerAssetLiabilityNet_a39f2695-5e1a-4a58-be1b-79eade7242ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/RevenueNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#RevenueNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/RevenueNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_3e0576ed-fa1f-4fc3-8d8e-d52b1790044c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostTable_5ae413f3-3e78-455f-9d41-6a2ea1dfe7c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_3e0576ed-fa1f-4fc3-8d8e-d52b1790044c" xlink:to="loc_us-gaap_CapitalizedContractCostTable_5ae413f3-3e78-455f-9d41-6a2ea1dfe7c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_8af7f563-408f-4593-bd1f-9f7e9143501a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostTable_5ae413f3-3e78-455f-9d41-6a2ea1dfe7c6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_8af7f563-408f-4593-bd1f-9f7e9143501a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAxis_8f6bd38a-b2cd-434f-881e-b1033b197115" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostTable_5ae413f3-3e78-455f-9d41-6a2ea1dfe7c6" xlink:to="loc_us-gaap_CapitalizedContractCostAxis_8f6bd38a-b2cd-434f-881e-b1033b197115" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostDomain_39ecdb19-2afc-48b9-b8c9-25462cf246c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostAxis_8f6bd38a-b2cd-434f-881e-b1033b197115" xlink:to="loc_us-gaap_CapitalizedContractCostDomain_39ecdb19-2afc-48b9-b8c9-25462cf246c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ContractAcquisitionCostsMember_2052ceb3-1799-4c2e-a244-42407162e859" xlink:href="fivn-20251231.xsd#fivn_ContractAcquisitionCostsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostDomain_39ecdb19-2afc-48b9-b8c9-25462cf246c0" xlink:to="loc_fivn_ContractAcquisitionCostsMember_2052ceb3-1799-4c2e-a244-42407162e859" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostTable_5ae413f3-3e78-455f-9d41-6a2ea1dfe7c6" xlink:to="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_005bd90b-8082-41ab-9cc0-32d2e62a9188" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostAmortizationPeriod"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:to="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_005bd90b-8082-41ab-9cc0-32d2e62a9188" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_1b91dc67-4e5f-412e-a7ad-fa1197ad9168" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_1b91dc67-4e5f-412e-a7ad-fa1197ad9168" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_5b0a4024-c4db-4c0b-a0a1-c3f37a6d7228" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_5b0a4024-c4db-4c0b-a0a1-c3f37a6d7228" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_2ca8ead2-92aa-427c-a7ec-499c0bddcbd7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_2ca8ead2-92aa-427c-a7ec-499c0bddcbd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_cb847962-0882-42ef-aa1f-6ef75c93dfa6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_cb847962-0882-42ef-aa1f-6ef75c93dfa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_d49dedb8-a409-4643-a1dd-00eb0e1e57df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuePerformanceObligationDescriptionOfTiming"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_6564e7ba-3c85-476c-ac31-b5f7d8d9edee" xlink:to="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_d49dedb8-a409-4643-a1dd-00eb0e1e57df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofMarketableInvestmentsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurementsScheduleofMarketableInvestmentsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofMarketableInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_4db0b3fd-311b-4e1d-b5ba-ff67aef89890" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bf8cd6fc-2677-4ce9-9f44-e9a026edbc95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4db0b3fd-311b-4e1d-b5ba-ff67aef89890" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bf8cd6fc-2677-4ce9-9f44-e9a026edbc95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_d0a06075-e08f-4e25-8d43-3442331e4185" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bf8cd6fc-2677-4ce9-9f44-e9a026edbc95" xlink:to="loc_us-gaap_FinancialInstrumentAxis_d0a06075-e08f-4e25-8d43-3442331e4185" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_d0a06075-e08f-4e25-8d43-3442331e4185" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositMember_fa932af6-c6f7-414a-b814-e4653d917527" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CertificatesOfDepositMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:to="loc_us-gaap_CertificatesOfDepositMember_fa932af6-c6f7-414a-b814-e4653d917527" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_31ae499b-465c-4bd2-9429-be3badceb50e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_31ae499b-465c-4bd2-9429-be3badceb50e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_cdd363b1-8ecc-4bb8-aab2-82f69deacd71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_cdd363b1-8ecc-4bb8-aab2-82f69deacd71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_c4a86e6b-923e-4578-b7a8-e23bbf3007f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:to="loc_us-gaap_CommercialPaperMember_c4a86e6b-923e-4578-b7a8-e23bbf3007f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_5935dc09-d07f-4134-80cf-b229a989f4d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a1664d27-58f6-47bc-89da-d084ea9e0086" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_5935dc09-d07f-4134-80cf-b229a989f4d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_468f4ed0-a9e2-4dc9-ab2f-57dea66c3dbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bf8cd6fc-2677-4ce9-9f44-e9a026edbc95" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_468f4ed0-a9e2-4dc9-ab2f-57dea66c3dbd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3644f5ca-1762-47da-9348-e795bc11d60b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_468f4ed0-a9e2-4dc9-ab2f-57dea66c3dbd" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3644f5ca-1762-47da-9348-e795bc11d60b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_b12566e9-8007-4eec-b2c1-4b19d37c407e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_468f4ed0-a9e2-4dc9-ab2f-57dea66c3dbd" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_b12566e9-8007-4eec-b2c1-4b19d37c407e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_16e0bd26-056a-45d2-a38e-6f3f27dbb40b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_468f4ed0-a9e2-4dc9-ab2f-57dea66c3dbd" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_16e0bd26-056a-45d2-a38e-6f3f27dbb40b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3d1265c7-8111-4b2b-a8c3-2c58524d433f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_468f4ed0-a9e2-4dc9-ab2f-57dea66c3dbd" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3d1265c7-8111-4b2b-a8c3-2c58524d433f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofGrossUnrealizedLossesandFairValueofMarketableInvestmentsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurementsScheduleofGrossUnrealizedLossesandFairValueofMarketableInvestmentsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofGrossUnrealizedLossesandFairValueofMarketableInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_10c2d041-98a8-4d5f-bf6e-f64819f01855" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_1a691ca2-6401-42f5-b8af-886036017bbc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_10c2d041-98a8-4d5f-bf6e-f64819f01855" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_1a691ca2-6401-42f5-b8af-886036017bbc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_7ebe9557-4f78-49da-a737-6f841fc84256" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_1a691ca2-6401-42f5-b8af-886036017bbc" xlink:to="loc_us-gaap_FinancialInstrumentAxis_7ebe9557-4f78-49da-a737-6f841fc84256" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_546984f5-7320-47b0-91dc-ef6156bccb61" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_7ebe9557-4f78-49da-a737-6f841fc84256" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_546984f5-7320-47b0-91dc-ef6156bccb61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_9029ca17-4f22-435c-aec3-7c83f25439b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_546984f5-7320-47b0-91dc-ef6156bccb61" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_9029ca17-4f22-435c-aec3-7c83f25439b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_3ad5d6db-1b72-4553-89b6-231e85a7f10a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_546984f5-7320-47b0-91dc-ef6156bccb61" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_3ad5d6db-1b72-4553-89b6-231e85a7f10a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_dc22c2c8-c813-46d5-b6e7-dfd68fc2f291" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_546984f5-7320-47b0-91dc-ef6156bccb61" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_dc22c2c8-c813-46d5-b6e7-dfd68fc2f291" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_6b1b745e-d758-4024-a4ef-bbae1e48699d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_1a691ca2-6401-42f5-b8af-886036017bbc" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_6b1b745e-d758-4024-a4ef-bbae1e48699d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_4258584f-399c-44ed-ade8-e0dd6a9f0e9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_6b1b745e-d758-4024-a4ef-bbae1e48699d" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_4258584f-399c-44ed-ade8-e0dd6a9f0e9d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_a5421ade-5443-4406-893d-aaa5ab9f7359" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_6b1b745e-d758-4024-a4ef-bbae1e48699d" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_a5421ade-5443-4406-893d-aaa5ab9f7359" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofMarketableInvestmentsbyContractualMaturitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurementsScheduleofMarketableInvestmentsbyContractualMaturitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofMarketableInvestmentsbyContractualMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_MarketableSecuritiesDueWithinOneYearCostBasis_53a28c63-2f51-4108-ae65-798f52d75ed5" xlink:href="fivn-20251231.xsd#fivn_MarketableSecuritiesDueWithinOneYearCostBasis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:to="loc_fivn_MarketableSecuritiesDueWithinOneYearCostBasis_53a28c63-2f51-4108-ae65-798f52d75ed5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_MarketableSecuritiesDueYearTwoCostBasis_f05ef263-b99f-4160-ae2f-b27db265c8ef" xlink:href="fivn-20251231.xsd#fivn_MarketableSecuritiesDueYearTwoCostBasis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:to="loc_fivn_MarketableSecuritiesDueYearTwoCostBasis_f05ef263-b99f-4160-ae2f-b27db265c8ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_ec18fa72-62f6-43e1-adc4-3c674f7c0d95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_ec18fa72-62f6-43e1-adc4-3c674f7c0d95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_MarketableSecuritiesDueWithinOneYearFairValue_3824fbe6-2a4d-4f07-9e11-01005775ef53" xlink:href="fivn-20251231.xsd#fivn_MarketableSecuritiesDueWithinOneYearFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:to="loc_fivn_MarketableSecuritiesDueWithinOneYearFairValue_3824fbe6-2a4d-4f07-9e11-01005775ef53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_MarketableSecuritiesDueYearTwoFairValue_d6bf7390-7a08-477b-890b-7d1b10e651b3" xlink:href="fivn-20251231.xsd#fivn_MarketableSecuritiesDueYearTwoFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:to="loc_fivn_MarketableSecuritiesDueYearTwoFairValue_d6bf7390-7a08-477b-890b-7d1b10e651b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_d1b4de41-bdf0-489b-82c8-9ef18a1d5856" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4e6e4703-05b6-40fe-8731-770d45228b3b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_d1b4de41-bdf0-489b-82c8-9ef18a1d5856" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofAssetsCarriedatFairValueDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurementsScheduleofAssetsCarriedatFairValueDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurementsScheduleofAssetsCarriedatFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_7ee2257e-9752-4927-be5d-8588a6ce8529" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3423ce80-f554-46d2-829a-dfb982ac481a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_7ee2257e-9752-4927-be5d-8588a6ce8529" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3423ce80-f554-46d2-829a-dfb982ac481a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_0227b95c-c1d6-4780-b1fe-11f2b6f65e2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3423ce80-f554-46d2-829a-dfb982ac481a" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_0227b95c-c1d6-4780-b1fe-11f2b6f65e2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_0227b95c-c1d6-4780-b1fe-11f2b6f65e2b" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_ab8f9154-d970-4263-a889-a6e8011710af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:to="loc_us-gaap_MoneyMarketFundsMember_ab8f9154-d970-4263-a889-a6e8011710af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositMember_ae2fa7f2-605c-4354-9dfe-ed9db50761ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CertificatesOfDepositMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:to="loc_us-gaap_CertificatesOfDepositMember_ae2fa7f2-605c-4354-9dfe-ed9db50761ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_11c02761-5659-433d-b32f-efc4ca58d85e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_11c02761-5659-433d-b32f-efc4ca58d85e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember_88a25238-b9d3-4d0e-acef-b94b3ba69ead" xlink:href="fivn-20251231.xsd#fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:to="loc_fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember_88a25238-b9d3-4d0e-acef-b94b3ba69ead" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_019b1117-3284-7f96-a68b-c0d4eeeafe6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_a2fadce6-3c9b-4af9-bf95-20df1a6a1a80" xlink:to="loc_us-gaap_CommercialPaperMember_019b1117-3284-7f96-a68b-c0d4eeeafe6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_dd700150-5ad4-4c02-ba7a-94090416b7cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3423ce80-f554-46d2-829a-dfb982ac481a" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_dd700150-5ad4-4c02-ba7a-94090416b7cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_025b856e-a578-49ab-84d2-ed43b03be68f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_dd700150-5ad4-4c02-ba7a-94090416b7cd" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_025b856e-a578-49ab-84d2-ed43b03be68f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_6c5dedcf-fa12-4e0d-bf9f-b35b03de53fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_025b856e-a578-49ab-84d2-ed43b03be68f" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_6c5dedcf-fa12-4e0d-bf9f-b35b03de53fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_44c473b6-680f-4772-885a-2d4e147417de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_025b856e-a578-49ab-84d2-ed43b03be68f" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_44c473b6-680f-4772-885a-2d4e147417de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_166ad5e3-09ba-4944-aec0-08820958f41e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_025b856e-a578-49ab-84d2-ed43b03be68f" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_166ad5e3-09ba-4944-aec0-08820958f41e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_1ee89aba-52e9-4be6-bea8-ce558e5cfe74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3423ce80-f554-46d2-829a-dfb982ac481a" xlink:to="loc_us-gaap_FinancialInstrumentAxis_1ee89aba-52e9-4be6-bea8-ce558e5cfe74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_1ee89aba-52e9-4be6-bea8-ce558e5cfe74" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositMember_d6fe9be2-0aa0-482c-ad2c-2bc72e78c0f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CertificatesOfDepositMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:to="loc_us-gaap_CertificatesOfDepositMember_d6fe9be2-0aa0-482c-ad2c-2bc72e78c0f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_d6314ac8-e5c0-4b9e-8d32-94925c14bbf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_d6314ac8-e5c0-4b9e-8d32-94925c14bbf6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember_2804d60f-9f70-4aad-9a29-19e47dd5258a" xlink:href="fivn-20251231.xsd#fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:to="loc_fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember_2804d60f-9f70-4aad-9a29-19e47dd5258a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_7bdf3710-b97c-42e5-9897-4140039a8508" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:to="loc_us-gaap_CommercialPaperMember_7bdf3710-b97c-42e5-9897-4140039a8508" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_1078068e-9d69-4fa3-b2e1-438323833519" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_bd2d93e8-b23e-40e4-bd7a-e63359ebb00c" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_1078068e-9d69-4fa3-b2e1-438323833519" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d656d34f-1bc5-4e63-bb39-dd92110eae32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3423ce80-f554-46d2-829a-dfb982ac481a" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d656d34f-1bc5-4e63-bb39-dd92110eae32" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_1a5e42dd-6118-4231-9c86-8b6796489da2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d656d34f-1bc5-4e63-bb39-dd92110eae32" xlink:to="loc_us-gaap_AssetsAbstract_1a5e42dd-6118-4231-9c86-8b6796489da2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_49a15c3c-85c5-44b3-a1ab-5a73b24512c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_1a5e42dd-6118-4231-9c86-8b6796489da2" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_49a15c3c-85c5-44b3-a1ab-5a73b24512c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_d3758b13-01b6-4c95-86c7-45d54facefcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_1a5e42dd-6118-4231-9c86-8b6796489da2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_d3758b13-01b6-4c95-86c7-45d54facefcc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/InvestmentsandFairValueMeasurementsNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#InvestmentsandFairValueMeasurementsNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/InvestmentsandFairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_9c83254c-7852-4546-8536-879eaf1585d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_9c83254c-7852-4546-8536-879eaf1585d4" xlink:to="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_a7076787-baaa-46d3-b7ad-bc814fe244a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:to="loc_us-gaap_DebtInstrumentAxis_a7076787-baaa-46d3-b7ad-bc814fe244a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_1829eeb1-4b83-433e-9224-9dddfe6d857f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_a7076787-baaa-46d3-b7ad-bc814fe244a8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_1829eeb1-4b83-433e-9224-9dddfe6d857f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2029Member_435ce70a-5e0e-45a5-9de2-5857a6f70b8c" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2029Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_1829eeb1-4b83-433e-9224-9dddfe6d857f" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2029Member_435ce70a-5e0e-45a5-9de2-5857a6f70b8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2025Member_65d327b1-33a2-4d06-8d3f-e05a0b12e83e" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_1829eeb1-4b83-433e-9224-9dddfe6d857f" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2025Member_65d327b1-33a2-4d06-8d3f-e05a0b12e83e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_cb756c64-ddc9-4c13-ab38-268082537e77" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_cb756c64-ddc9-4c13-ab38-268082537e77" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_58b609b6-adf1-4d06-8520-e613a9d5d3e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_cb756c64-ddc9-4c13-ab38-268082537e77" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_58b609b6-adf1-4d06-8520-e613a9d5d3e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_f59125c2-0fdf-43da-9bfd-9425efea12f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_58b609b6-adf1-4d06-8520-e613a9d5d3e7" xlink:to="loc_us-gaap_ConvertibleDebtMember_f59125c2-0fdf-43da-9bfd-9425efea12f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_a3c51090-3c8f-48a4-af32-35f54a121b7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_a3c51090-3c8f-48a4-af32-35f54a121b7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_4ad0f111-75c5-474f-8049-d42dd4879003" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_a3c51090-3c8f-48a4-af32-35f54a121b7c" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_4ad0f111-75c5-474f-8049-d42dd4879003" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrivatePlacementMember_69d67138-089a-4282-bc6e-0d27322a9ae4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrivatePlacementMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_4ad0f111-75c5-474f-8049-d42dd4879003" xlink:to="loc_us-gaap_PrivatePlacementMember_69d67138-089a-4282-bc6e-0d27322a9ae4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_4f683bcd-970f-4dcd-aa9c-2ac234b8079d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_4f683bcd-970f-4dcd-aa9c-2ac234b8079d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_494bdd21-9710-4f41-be7e-7689616ea1d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_4f683bcd-970f-4dcd-aa9c-2ac234b8079d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_494bdd21-9710-4f41-be7e-7689616ea1d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_aed963dd-ed16-4ae2-a562-4964d533ff8d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_494bdd21-9710-4f41-be7e-7689616ea1d5" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_aed963dd-ed16-4ae2-a562-4964d533ff8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2102cf10-230e-4504-9b91-99ed33f7de83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2102cf10-230e-4504-9b91-99ed33f7de83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_a7c134eb-c12d-4087-98ef-a47fbabed0b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2102cf10-230e-4504-9b91-99ed33f7de83" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_a7c134eb-c12d-4087-98ef-a47fbabed0b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_878fee4f-d81d-415e-9683-47dbd5748efa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_a7c134eb-c12d-4087-98ef-a47fbabed0b3" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_878fee4f-d81d-415e-9683-47dbd5748efa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_e37e8d90-53ff-48d6-8f6d-72271ef09695" xlink:to="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_75b6fcb0-8e51-4579-9e81-6ea104690118" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_75b6fcb0-8e51-4579-9e81-6ea104690118" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8ab8d256-7663-4449-b0af-b1844203039a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8ab8d256-7663-4449-b0af-b1844203039a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAmount_be3e6140-d915-4968-beea-0a7950f2101d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ExtinguishmentOfDebtAmount"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_ExtinguishmentOfDebtAmount_be3e6140-d915-4968-beea-0a7950f2101d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_4849a40f-b12e-492d-9be2-715e94d8701f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_LongTermDebtFairValue_4849a40f-b12e-492d-9be2-715e94d8701f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8abcd282-654c-42dc-96d8-32e5e5dc1c1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8abcd282-654c-42dc-96d8-32e5e5dc1c1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_fbee5f4f-0384-44e7-ae7a-9389a8b927a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_fbee5f4f-0384-44e7-ae7a-9389a8b927a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueNetAssetLiability_d6ff1fa3-ae95-40fe-8c43-f3fe01cd13c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueNetAssetLiability"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9063f58e-93c8-41c6-996d-5c0f495f2a15" xlink:to="loc_us-gaap_FairValueNetAssetLiability_d6ff1fa3-ae95-40fe-8c43-f3fe01cd13c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofCashandCashEquivalentsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofCashandCashEquivalentsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofCashandCashEquivalentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c7807d29-985a-4458-b43c-caf9c16b1a84" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_2ef54917-85b6-400b-b34d-39de9651a3e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c7807d29-985a-4458-b43c-caf9c16b1a84" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_2ef54917-85b6-400b-b34d-39de9651a3e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_379ee0df-3f84-44fc-8190-7556bec9c5db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_2ef54917-85b6-400b-b34d-39de9651a3e3" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_379ee0df-3f84-44fc-8190-7556bec9c5db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_379ee0df-3f84-44fc-8190-7556bec9c5db" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashMember_8c8b788c-ae8b-4141-9d85-26799688e783" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:to="loc_us-gaap_CashMember_8c8b788c-ae8b-4141-9d85-26799688e783" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_e74998b1-0c33-4c5d-9b21-ad70ee6330c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:to="loc_us-gaap_MoneyMarketFundsMember_e74998b1-0c33-4c5d-9b21-ad70ee6330c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositMember_2192291e-652d-42db-8e73-948aa577f7fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CertificatesOfDepositMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:to="loc_us-gaap_CertificatesOfDepositMember_2192291e-652d-42db-8e73-948aa577f7fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_c065bbd4-0ab6-49fa-96d7-0222cf3d9532" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_c065bbd4-0ab6-49fa-96d7-0222cf3d9532" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember_9dd00264-3209-42be-b4e8-93f6ed2b8f2d" xlink:href="fivn-20251231.xsd#fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_4b80de34-416a-402c-bd7b-36f9967a55f2" xlink:to="loc_fivn_USGovernmentAgenciesAndUSGovernmentSponsoredEnterprisesDebtSecuritiesMember_9dd00264-3209-42be-b4e8-93f6ed2b8f2d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_bec08032-a736-46f0-96fa-70f0e6475c08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_2ef54917-85b6-400b-b34d-39de9651a3e3" xlink:to="loc_us-gaap_CashAndCashEquivalentsLineItems_bec08032-a736-46f0-96fa-70f0e6475c08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a3214e64-03b7-44cc-94b5-4011f46b98b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_bec08032-a736-46f0-96fa-70f0e6475c08" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a3214e64-03b7-44cc-94b5-4011f46b98b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofAccountsReceivableDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofAccountsReceivableDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofAccountsReceivableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_80826fbe-cc0b-4cf9-9ef4-4c92447a92d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_4903a8a2-1c73-42b8-9692-94c4a97179f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_80826fbe-cc0b-4cf9-9ef4-4c92447a92d2" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_4903a8a2-1c73-42b8-9692-94c4a97179f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis_d3f94e03-5d2b-4ab1-bd46-0ca85584b57c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_4903a8a2-1c73-42b8-9692-94c4a97179f6" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis_d3f94e03-5d2b-4ab1-bd46-0ca85584b57c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesBillingStatusDomain_fe5d2a57-285f-4c25-a4f2-8efebb99693f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivablesBillingStatusDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis_d3f94e03-5d2b-4ab1-bd46-0ca85584b57c" xlink:to="loc_us-gaap_ReceivablesBillingStatusDomain_fe5d2a57-285f-4c25-a4f2-8efebb99693f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BilledRevenuesMember_986ebe45-96d4-4e7f-89f4-d59a5eefb3aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BilledRevenuesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesBillingStatusDomain_fe5d2a57-285f-4c25-a4f2-8efebb99693f" xlink:to="loc_us-gaap_BilledRevenuesMember_986ebe45-96d4-4e7f-89f4-d59a5eefb3aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledRevenuesMember_5f1bc577-5e45-46f0-b136-de57c92da146" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnbilledRevenuesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesBillingStatusDomain_fe5d2a57-285f-4c25-a4f2-8efebb99693f" xlink:to="loc_us-gaap_UnbilledRevenuesMember_5f1bc577-5e45-46f0-b136-de57c92da146" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_814a2a0c-c23e-4657-b975-5ba44569c74e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_4903a8a2-1c73-42b8-9692-94c4a97179f6" xlink:to="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_814a2a0c-c23e-4657-b975-5ba44569c74e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_ca2fca97-15fc-4ecf-b30a-95efdd28da55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_814a2a0c-c23e-4657-b975-5ba44569c74e" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_ca2fca97-15fc-4ecf-b30a-95efdd28da55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_02f2fdcb-0149-44bd-85fc-392236324f59" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_814a2a0c-c23e-4657-b975-5ba44569c74e" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_02f2fdcb-0149-44bd-85fc-392236324f59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_6a2aac93-2c84-4691-8c11-10710cd23376" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_814a2a0c-c23e-4657-b975-5ba44569c74e" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_6a2aac93-2c84-4691-8c11-10710cd23376" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofPrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofPrepaidExpensesandOtherCurrentAssetsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofPrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_b1cf52aa-87a9-4b3d-adfa-f6c43ae3d107" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_e6b46861-6c8d-4076-9986-2f8daecb262a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_b1cf52aa-87a9-4b3d-adfa-f6c43ae3d107" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_e6b46861-6c8d-4076-9986-2f8daecb262a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_04c7a3d4-18c8-4677-80b4-7925dd4a4450" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_b1cf52aa-87a9-4b3d-adfa-f6c43ae3d107" xlink:to="loc_us-gaap_OtherAssetsCurrent_04c7a3d4-18c8-4677-80b4-7925dd4a4450" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_b64e259b-31ac-4ef0-8dcb-2a15282428bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_b1cf52aa-87a9-4b3d-adfa-f6c43ae3d107" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_b64e259b-31ac-4ef0-8dcb-2a15282428bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_5c6ddeeb-b925-401b-a1a8-27503bb7aae0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_b1cf52aa-87a9-4b3d-adfa-f6c43ae3d107" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_5c6ddeeb-b925-401b-a1a8-27503bb7aae0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofPropertyandEquipmentDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofPropertyandEquipmentDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofPropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_fe59e372-9329-4ac9-90f3-845c4bca87e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ff8880e4-0c30-45a0-a5e4-16b5441e4b5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_fe59e372-9329-4ac9-90f3-845c4bca87e2" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ff8880e4-0c30-45a0-a5e4-16b5441e4b5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6c6a3653-3e7f-4116-819d-e677df97851c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ff8880e4-0c30-45a0-a5e4-16b5441e4b5a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6c6a3653-3e7f-4116-819d-e677df97851c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6c6a3653-3e7f-4116-819d-e677df97851c" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_db42bd90-c23a-40c1-84ac-d4b6ab4fbf6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:to="loc_us-gaap_ComputerEquipmentMember_db42bd90-c23a-40c1-84ac-d4b6ab4fbf6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ComputerSoftwareMember_019c4ced-088b-78f1-b0ab-fad90e4afb92" xlink:href="fivn-20251231.xsd#fivn_ComputerSoftwareMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:to="loc_fivn_ComputerSoftwareMember_019c4ced-088b-78f1-b0ab-fad90e4afb92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_e8d8f546-0dee-4e5a-b344-6def4e11d922" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_e8d8f546-0dee-4e5a-b344-6def4e11d922" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_80e55220-bdd5-480c-ae7a-9df6054be2a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_80e55220-bdd5-480c-ae7a-9df6054be2a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_0b6bf449-d69e-4779-b2ca-bca86e31b4b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bcf31013-e706-4526-9808-be5d288183d7" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_0b6bf449-d69e-4779-b2ca-bca86e31b4b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7aeb105e-39b4-42e8-b0ee-8d46ed6fe0b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ff8880e4-0c30-45a0-a5e4-16b5441e4b5a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7aeb105e-39b4-42e8-b0ee-8d46ed6fe0b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_6dda68b2-47e6-4ef9-b035-2dc984bf097e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7aeb105e-39b4-42e8-b0ee-8d46ed6fe0b4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_6dda68b2-47e6-4ef9-b035-2dc984bf097e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_1b7b9a46-7b3d-49f4-aef7-ce87b5d97b34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7aeb105e-39b4-42e8-b0ee-8d46ed6fe0b4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_1b7b9a46-7b3d-49f4-aef7-ce87b5d97b34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_9dd966cd-ce91-459e-8d69-b81f22332679" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7aeb105e-39b4-42e8-b0ee-8d46ed6fe0b4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_9dd966cd-ce91-459e-8d69-b81f22332679" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019b1125-3266-71ba-917d-284f6296abcf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019b1125-71b9-7e26-8d0a-896d0f8676e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019b1125-3266-71ba-917d-284f6296abcf" xlink:to="loc_us-gaap_Depreciation_019b1125-71b9-7e26-8d0a-896d0f8676e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TangibleAssetImpairmentCharges_019bda86-b68b-7737-bc08-793538b050f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TangibleAssetImpairmentCharges"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019b1125-3266-71ba-917d-284f6296abcf" xlink:to="loc_us-gaap_TangibleAssetImpairmentCharges_019bda86-b68b-7737-bc08-793538b050f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofOtherAssetsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofOtherAssetsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofOtherAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a836b690-5441-4c34-b68b-e62b6e28a91a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_5a514cf9-f9bb-4806-b895-f093a736220f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a836b690-5441-4c34-b68b-e62b6e28a91a" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_5a514cf9-f9bb-4806-b895-f093a736220f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_92112c58-df5c-41f4-9a6b-6cfcf4a3de71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a836b690-5441-4c34-b68b-e62b6e28a91a" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_92112c58-df5c-41f4-9a6b-6cfcf4a3de71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_5c4776cc-16f3-4191-8ecb-04b8c2bbc049" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a836b690-5441-4c34-b68b-e62b6e28a91a" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_5c4776cc-16f3-4191-8ecb-04b8c2bbc049" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_17689cf4-6e6c-4643-9b0c-404019fbbfda" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a836b690-5441-4c34-b68b-e62b6e28a91a" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_17689cf4-6e6c-4643-9b0c-404019fbbfda" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofAccruedandOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofAccruedandOtherCurrentLiabilitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofAccruedandOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5fa8f603-5b62-47c0-9c22-4f6dc0046245" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_f9e567aa-d945-47a9-8a08-947d87052c44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5fa8f603-5b62-47c0-9c22-4f6dc0046245" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_f9e567aa-d945-47a9-8a08-947d87052c44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_c2acde1e-2490-4bc2-8923-55aa133761bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5fa8f603-5b62-47c0-9c22-4f6dc0046245" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_c2acde1e-2490-4bc2-8923-55aa133761bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AccruedFederalFeesPayableCurrent_1c9544ab-c1bc-4a8f-b0bb-57b68a8e152e" xlink:href="fivn-20251231.xsd#fivn_AccruedFederalFeesPayableCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5fa8f603-5b62-47c0-9c22-4f6dc0046245" xlink:to="loc_fivn_AccruedFederalFeesPayableCurrent_1c9544ab-c1bc-4a8f-b0bb-57b68a8e152e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesAndExciseTaxPayableCurrent_75ed26a3-27d9-4f0d-aa96-ec84794e01d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesAndExciseTaxPayableCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5fa8f603-5b62-47c0-9c22-4f6dc0046245" xlink:to="loc_us-gaap_SalesAndExciseTaxPayableCurrent_75ed26a3-27d9-4f0d-aa96-ec84794e01d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AccruedLiabilitiesandOtherCurrentLiabilities_7e0dcdf2-a613-46ff-9292-10645e6917a7" xlink:href="fivn-20251231.xsd#fivn_AccruedLiabilitiesandOtherCurrentLiabilities"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5fa8f603-5b62-47c0-9c22-4f6dc0046245" xlink:to="loc_fivn_AccruedLiabilitiesandOtherCurrentLiabilities_7e0dcdf2-a613-46ff-9292-10645e6917a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/FinancialStatementComponentsScheduleofOtherLongtermLiabilitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#FinancialStatementComponentsScheduleofOtherLongtermLiabilitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/FinancialStatementComponentsScheduleofOtherLongtermLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c8bd1a47-e201-450b-a618-b701c4c97891" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_e786d779-5527-409b-9438-e3b2132d624f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c8bd1a47-e201-450b-a618-b701c4c97891" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_e786d779-5527-409b-9438-e3b2132d624f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_4353a0a0-47b8-4a6b-9e94-113162b5f5b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c8bd1a47-e201-450b-a618-b701c4c97891" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_4353a0a0-47b8-4a6b-9e94-113162b5f5b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_SalesAndOtherTaxLiabilitiesNoncurrent_5708f334-f52c-41dd-a33e-f31e17ca126e" xlink:href="fivn-20251231.xsd#fivn_SalesAndOtherTaxLiabilitiesNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c8bd1a47-e201-450b-a618-b701c4c97891" xlink:to="loc_fivn_SalesAndOtherTaxLiabilitiesNoncurrent_5708f334-f52c-41dd-a33e-f31e17ca126e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_OtherLongTermLiabilities_7537b7e2-d388-4112-b264-06b93e6f36ae" xlink:href="fivn-20251231.xsd#fivn_OtherLongTermLiabilities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c8bd1a47-e201-450b-a618-b701c4c97891" xlink:to="loc_fivn_OtherLongTermLiabilities_7537b7e2-d388-4112-b264-06b93e6f36ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_8c437d57-9f16-4d2c-b314-b2df3b4149e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_c8bd1a47-e201-450b-a618-b701c4c97891" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_8c437d57-9f16-4d2c-b314-b2df3b4149e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/GoodwillandIntangibleAssetsScheduleofGoodwillandIntangibleAssetsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#GoodwillandIntangibleAssetsScheduleofGoodwillandIntangibleAssetsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/GoodwillandIntangibleAssetsScheduleofGoodwillandIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_d3f5c6e4-2022-434e-ba46-73b7fe1d4ceb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_bcdd1ad5-5858-46c7-b15f-9b42cf54b95f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_d3f5c6e4-2022-434e-ba46-73b7fe1d4ceb" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_bcdd1ad5-5858-46c7-b15f-9b42cf54b95f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_b3cd1edd-ef63-45bf-aad5-2d0f9b89d285" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_bcdd1ad5-5858-46c7-b15f-9b42cf54b95f" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_b3cd1edd-ef63-45bf-aad5-2d0f9b89d285" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_07b35753-9731-4eb4-9348-a6c40e04a4da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b3cd1edd-ef63-45bf-aad5-2d0f9b89d285" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_07b35753-9731-4eb4-9348-a6c40e04a4da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AcqueonMember_37780c89-3dad-4963-9fe2-04268d60912d" xlink:href="fivn-20251231.xsd#fivn_AcqueonMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_07b35753-9731-4eb4-9348-a6c40e04a4da" xlink:to="loc_fivn_AcqueonMember_37780c89-3dad-4963-9fe2-04268d60912d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AceyusIncMember_951a5eaf-a449-40e0-8e64-a56b8225a7b7" xlink:href="fivn-20251231.xsd#fivn_AceyusIncMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_07b35753-9731-4eb4-9348-a6c40e04a4da" xlink:to="loc_fivn_AceyusIncMember_951a5eaf-a449-40e0-8e64-a56b8225a7b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_0ceca5a4-e16f-4853-8751-06f1e8b55227" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_bcdd1ad5-5858-46c7-b15f-9b42cf54b95f" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_0ceca5a4-e16f-4853-8751-06f1e8b55227" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_ab0ff3ef-220e-4fef-a00e-7f1c1f117643" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_0ceca5a4-e16f-4853-8751-06f1e8b55227" xlink:to="loc_us-gaap_GoodwillRollForward_ab0ff3ef-220e-4fef-a00e-7f1c1f117643" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_291eed5c-eaae-4b26-9340-874db07076db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_ab0ff3ef-220e-4fef-a00e-7f1c1f117643" xlink:to="loc_us-gaap_Goodwill_291eed5c-eaae-4b26-9340-874db07076db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_ddf64d77-93c9-4d1e-96f0-665edad1b271" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_ab0ff3ef-220e-4fef-a00e-7f1c1f117643" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_ddf64d77-93c9-4d1e-96f0-665edad1b271" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_e1a64fd2-9ad6-45f4-a055-212c01fc45ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillPurchaseAccountingAdjustments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_ab0ff3ef-220e-4fef-a00e-7f1c1f117643" xlink:to="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_e1a64fd2-9ad6-45f4-a055-212c01fc45ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_bcfaafc1-cb4f-4e37-b835-e20b5e2200c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_ab0ff3ef-220e-4fef-a00e-7f1c1f117643" xlink:to="loc_us-gaap_Goodwill_bcfaafc1-cb4f-4e37-b835-e20b5e2200c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsRollForward_1bf654a2-f2e9-4629-a5c7-733a98c816fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsRollForward"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_0ceca5a4-e16f-4853-8751-06f1e8b55227" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsRollForward_1bf654a2-f2e9-4629-a5c7-733a98c816fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f8d75f79-fbe7-4d40-b5d4-0bb3694fd428" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsRollForward_1bf654a2-f2e9-4629-a5c7-733a98c816fc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f8d75f79-fbe7-4d40-b5d4-0bb3694fd428" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_ef3cf86e-c4f4-40eb-bee8-781c1e4d0c88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsRollForward_1bf654a2-f2e9-4629-a5c7-733a98c816fc" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_ef3cf86e-c4f4-40eb-bee8-781c1e4d0c88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_35a9e1cb-1d75-4805-a508-313e204ed2f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsRollForward_1bf654a2-f2e9-4629-a5c7-733a98c816fc" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_35a9e1cb-1d75-4805-a508-313e204ed2f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_ae232705-34f6-4a61-aeb5-0c1d89319904" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsRollForward_1bf654a2-f2e9-4629-a5c7-733a98c816fc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_ae232705-34f6-4a61-aeb5-0c1d89319904" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/GoodwillandIntangibleAssetsNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#GoodwillandIntangibleAssetsNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/GoodwillandIntangibleAssetsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_33d1c74e-6340-4114-bd4e-b5c91efe0fc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_bf722168-8ed6-48fd-8a29-db4f9286bfa2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_33d1c74e-6340-4114-bd4e-b5c91efe0fc3" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_bf722168-8ed6-48fd-8a29-db4f9286bfa2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_3f813637-6262-4f96-9605-2fea25420393" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_33d1c74e-6340-4114-bd4e-b5c91efe0fc3" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_3f813637-6262-4f96-9605-2fea25420393" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_d6e4a14e-307c-4e8c-b73b-98d55dfe98ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_33d1c74e-6340-4114-bd4e-b5c91efe0fc3" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_d6e4a14e-307c-4e8c-b73b-98d55dfe98ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/GoodwillandIntangibleAssetsScheduleofIntangibleAssetsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#GoodwillandIntangibleAssetsScheduleofIntangibleAssetsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/GoodwillandIntangibleAssetsScheduleofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_bb4e8e1e-b705-43e2-8e7c-458fb4ace4c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_fcb7a144-87b2-458e-bfb6-f994dfeca511" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_bb4e8e1e-b705-43e2-8e7c-458fb4ace4c2" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_fcb7a144-87b2-458e-bfb6-f994dfeca511" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_db7eaf5d-3d52-4371-91f3-a775a3cc1664" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_fcb7a144-87b2-458e-bfb6-f994dfeca511" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_db7eaf5d-3d52-4371-91f3-a775a3cc1664" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ed43474f-55ce-4130-962c-5e238a386b06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_db7eaf5d-3d52-4371-91f3-a775a3cc1664" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ed43474f-55ce-4130-962c-5e238a386b06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_ae7f50ec-f4a2-4324-8976-6789ac3494ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ed43474f-55ce-4130-962c-5e238a386b06" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_ae7f50ec-f4a2-4324-8976-6789ac3494ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmploymentContractsMember_beeaa8dd-39a6-40c8-9bec-faa976adcbe6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmploymentContractsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ed43474f-55ce-4130-962c-5e238a386b06" xlink:to="loc_us-gaap_EmploymentContractsMember_beeaa8dd-39a6-40c8-9bec-faa976adcbe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_696fe9e1-5c76-4d50-8ae0-ef22b3e4ee05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ed43474f-55ce-4130-962c-5e238a386b06" xlink:to="loc_us-gaap_CustomerRelationshipsMember_696fe9e1-5c76-4d50-8ae0-ef22b3e4ee05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksMember_87f066ec-abbc-40f4-8b1b-ea24e124be31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TrademarksMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ed43474f-55ce-4130-962c-5e238a386b06" xlink:to="loc_us-gaap_TrademarksMember_87f066ec-abbc-40f4-8b1b-ea24e124be31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_82c38bac-acce-432a-8876-47342ca82677" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_fcb7a144-87b2-458e-bfb6-f994dfeca511" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_82c38bac-acce-432a-8876-47342ca82677" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_5f88145d-2178-4ae7-82cf-b3ff75f68571" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_82c38bac-acce-432a-8876-47342ca82677" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_5f88145d-2178-4ae7-82cf-b3ff75f68571" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e8af5094-6b7e-445a-9040-5bfac0dd23e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_82c38bac-acce-432a-8876-47342ca82677" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e8af5094-6b7e-445a-9040-5bfac0dd23e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_62bb5355-0b23-4652-8ff1-1759aa8d9804" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_82c38bac-acce-432a-8876-47342ca82677" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_62bb5355-0b23-4652-8ff1-1759aa8d9804" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_eeb3447b-3545-484e-b606-48c0afa2faf0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_82c38bac-acce-432a-8876-47342ca82677" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_eeb3447b-3545-484e-b606-48c0afa2faf0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/GoodwillandIntangibleAssetsScheduleofExpectedFutureAmortizationExpenseofIntangibleAssetsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#GoodwillandIntangibleAssetsScheduleofExpectedFutureAmortizationExpenseofIntangibleAssetsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/GoodwillandIntangibleAssetsScheduleofExpectedFutureAmortizationExpenseofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8ff9d669-10f1-4d7f-a023-f558facaaadf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8ff9d669-10f1-4d7f-a023-f558facaaadf" xlink:to="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_37c2cb2e-1e2d-4648-b550-ce8d73e7cb80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_37c2cb2e-1e2d-4648-b550-ce8d73e7cb80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_be263cc5-d1dd-43db-a7a2-fd7efb3eb88a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_be263cc5-d1dd-43db-a7a2-fd7efb3eb88a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_10797ff4-618a-491c-8dcc-20aa46970c3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_10797ff4-618a-491c-8dcc-20aa46970c3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_a4ac017e-c25b-40f4-b25e-94bae6695d16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_a4ac017e-c25b-40f4-b25e-94bae6695d16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_65434c4e-6df4-4656-bf70-439af7cbd25e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_65434c4e-6df4-4656-bf70-439af7cbd25e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_ef01208e-2930-452f-b2af-949ef32f95df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_ef01208e-2930-452f-b2af-949ef32f95df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_ff8b1295-fd0f-45b7-9cdb-acc7f4b134a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExpectedAmortizationExpenseOfEndingPresentValueOfFutureInsuranceProfitsNetOfInterestAccruedAbstract_019c66f1-0768-7727-8249-df3529003e79" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_ff8b1295-fd0f-45b7-9cdb-acc7f4b134a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DebtNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DebtNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_2987a632-542a-4ef0-9d62-d2b124850a5d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_2987a632-542a-4ef0-9d62-d2b124850a5d" xlink:to="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_33ba8923-b486-4825-ad2d-5c44a0dd1546" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:to="loc_us-gaap_DebtInstrumentAxis_33ba8923-b486-4825-ad2d-5c44a0dd1546" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_4fcaebc3-1456-49d3-a13c-8319c7469139" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_33ba8923-b486-4825-ad2d-5c44a0dd1546" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_4fcaebc3-1456-49d3-a13c-8319c7469139" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2025Member_0e54ca30-5738-4b00-9fc2-b663a3724afc" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_4fcaebc3-1456-49d3-a13c-8319c7469139" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2025Member_0e54ca30-5738-4b00-9fc2-b663a3724afc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2029Member_e15e9445-894a-4b5b-bfd4-eb9d848243f6" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2029Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_4fcaebc3-1456-49d3-a13c-8319c7469139" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2029Member_e15e9445-894a-4b5b-bfd4-eb9d848243f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_72c5348a-a90c-4226-a7e9-ef91765b4964" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_72c5348a-a90c-4226-a7e9-ef91765b4964" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_137563da-2e32-415b-a8d3-b3fb12677053" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_72c5348a-a90c-4226-a7e9-ef91765b4964" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_137563da-2e32-415b-a8d3-b3fb12677053" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_ca6ae8b9-785f-48d5-84d5-0068bbb6a8f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_137563da-2e32-415b-a8d3-b3fb12677053" xlink:to="loc_us-gaap_ConvertibleDebtMember_ca6ae8b9-785f-48d5-84d5-0068bbb6a8f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_272e65b7-7fd3-4793-b219-1222efd58ce4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_272e65b7-7fd3-4793-b219-1222efd58ce4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_8ad2e922-6527-4091-8fe1-b3fd31d53c8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_272e65b7-7fd3-4793-b219-1222efd58ce4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_8ad2e922-6527-4091-8fe1-b3fd31d53c8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrivatePlacementMember_b067ec2f-24cd-4133-aafa-395a61877f42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrivatePlacementMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_8ad2e922-6527-4091-8fe1-b3fd31d53c8a" xlink:to="loc_us-gaap_PrivatePlacementMember_b067ec2f-24cd-4133-aafa-395a61877f42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentConvertibleTermAxis_2fa56a14-f644-4dc4-b073-7555a2baaa84" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentConvertibleTermAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:to="loc_fivn_DebtInstrumentConvertibleTermAxis_2fa56a14-f644-4dc4-b073-7555a2baaa84" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentConvertibleTermDomain_610d72fa-1659-4605-a2e2-da3d9722733b" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentConvertibleTermDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_DebtInstrumentConvertibleTermAxis_2fa56a14-f644-4dc4-b073-7555a2baaa84" xlink:to="loc_fivn_DebtInstrumentConvertibleTermDomain_610d72fa-1659-4605-a2e2-da3d9722733b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentConvertibleTermOneMember_4778a7f5-195a-491c-a67f-a024c78110be" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentConvertibleTermOneMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_DebtInstrumentConvertibleTermDomain_610d72fa-1659-4605-a2e2-da3d9722733b" xlink:to="loc_fivn_DebtInstrumentConvertibleTermOneMember_4778a7f5-195a-491c-a67f-a024c78110be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentConvertibleTermTwoMember_c8e7871c-d62a-4740-99eb-89ae7389673c" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentConvertibleTermTwoMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_DebtInstrumentConvertibleTermDomain_610d72fa-1659-4605-a2e2-da3d9722733b" xlink:to="loc_fivn_DebtInstrumentConvertibleTermTwoMember_c8e7871c-d62a-4740-99eb-89ae7389673c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_28ca46f9-26d0-46bc-a087-e5ef332389ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_28ca46f9-26d0-46bc-a087-e5ef332389ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_10db047e-039a-4308-bd3b-4156f67da4a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_28ca46f9-26d0-46bc-a087-e5ef332389ec" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_10db047e-039a-4308-bd3b-4156f67da4a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_c48ab633-190a-410a-bc5e-0531e7e533b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_10db047e-039a-4308-bd3b-4156f67da4a2" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_c48ab633-190a-410a-bc5e-0531e7e533b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_67efe784-e2f6-402c-8937-5feb79b18612" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPeriodThreeMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_10db047e-039a-4308-bd3b-4156f67da4a2" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_67efe784-e2f6-402c-8937-5feb79b18612" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_74d877ba-b1d1-4e74-9296-d26b535564f1" xlink:to="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAmount_2d3bf6ad-ac88-4fa6-88f0-c2afdce35e4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ExtinguishmentOfDebtAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_ExtinguishmentOfDebtAmount_2d3bf6ad-ac88-4fa6-88f0-c2afdce35e4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AggregateConsiderationToRepurchaseNote_a7777b65-8857-4338-9915-89a29dd15913" xlink:href="fivn-20251231.xsd#fivn_AggregateConsiderationToRepurchaseNote"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_AggregateConsiderationToRepurchaseNote_a7777b65-8857-4338-9915-89a29dd15913" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_08a24d59-f2b6-413d-b2b2-6f86fb8d4a68" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_08a24d59-f2b6-413d-b2b2-6f86fb8d4a68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CashReceivedFromUnwoundCappedCallSettlement_e5b745fe-f01f-4660-8b2a-f3521d493163" xlink:href="fivn-20251231.xsd#fivn_CashReceivedFromUnwoundCappedCallSettlement"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_CashReceivedFromUnwoundCappedCallSettlement_e5b745fe-f01f-4660-8b2a-f3521d493163" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_4d124957-5750-41ac-aaba-8e72c1771e07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_4d124957-5750-41ac-aaba-8e72c1771e07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentOptionToPurchaseAdditionalDebtThroughPrivateOffering_3e9b7b06-fe73-4ade-bb26-96f3939298ff" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentOptionToPurchaseAdditionalDebtThroughPrivateOffering"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_DebtInstrumentOptionToPurchaseAdditionalDebtThroughPrivateOffering_3e9b7b06-fe73-4ade-bb26-96f3939298ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_41ed5a8e-24e0-4e02-aa0d-7a397f8f35c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_41ed5a8e-24e0-4e02-aa0d-7a397f8f35c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_875aac14-2081-4eaf-9c75-60310a58bcc0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_875aac14-2081-4eaf-9c75-60310a58bcc0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_97354fa9-2009-4b7b-9702-2824fabec03e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_97354fa9-2009-4b7b-9702-2824fabec03e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_0f8e315b-a372-4473-8977-2714237c616a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_0f8e315b-a372-4473-8977-2714237c616a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentPremiumOnConversionPriceInRelationToClosingPrice_8eacc3b4-7a7f-47d6-a060-8b96f2c18a9b" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentPremiumOnConversionPriceInRelationToClosingPrice"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_DebtInstrumentPremiumOnConversionPriceInRelationToClosingPrice_8eacc3b4-7a7f-47d6-a060-8b96f2c18a9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ClosingPriceOfCommonStock_5cab5f5b-9596-4f49-ba87-6befec14df90" xlink:href="fivn-20251231.xsd#fivn_ClosingPriceOfCommonStock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_ClosingPriceOfCommonStock_5cab5f5b-9596-4f49-ba87-6befec14df90" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_9c9d83df-c075-40fb-8a09-1a671a73bb8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_9c9d83df-c075-40fb-8a09-1a671a73bb8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_26cb1a27-47f9-4020-b970-0cc2fb8741ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_26cb1a27-47f9-4020-b970-0cc2fb8741ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_45f3503b-c302-477e-9b76-ae1ea4cc9c01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_45f3503b-c302-477e-9b76-ae1ea4cc9c01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_3fdb6a2e-5abf-44c6-b110-37d7057c4091" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_3fdb6a2e-5abf-44c6-b110-37d7057c4091" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_SharePriceOfCommonStockWithConversionPremium_a4c1a768-8b2a-49c1-99ae-145c2817ccdc" xlink:href="fivn-20251231.xsd#fivn_SharePriceOfCommonStockWithConversionPremium"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_SharePriceOfCommonStockWithConversionPremium_a4c1a768-8b2a-49c1-99ae-145c2817ccdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentRedemptionMinimumAggregatePrincipalAmountOutstandingRequiredForRedemption_d73bcf43-e0c8-4649-8ce3-1318846e4fdb" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentRedemptionMinimumAggregatePrincipalAmountOutstandingRequiredForRedemption"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_DebtInstrumentRedemptionMinimumAggregatePrincipalAmountOutstandingRequiredForRedemption_d73bcf43-e0c8-4649-8ce3-1318846e4fdb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentSinkingFundPayment_eb7e4d99-2237-492e-8cf2-d43ef237898d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentSinkingFundPayment"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentSinkingFundPayment_eb7e4d99-2237-492e-8cf2-d43ef237898d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_2f471ed7-ad5c-44c0-bc27-79ee1925a759" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_2f471ed7-ad5c-44c0-bc27-79ee1925a759" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleStockPriceTrigger_255ed262-6338-4742-9c02-68f8d88b66d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentConvertibleStockPriceTrigger"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_DebtInstrumentConvertibleStockPriceTrigger_255ed262-6338-4742-9c02-68f8d88b66d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentConvertibleCappedCallTransactionsCapPrice_1ea0937a-d6b8-4a58-aa31-d324c2d9a7f7" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentConvertibleCappedCallTransactionsCapPrice"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_DebtInstrumentConvertibleCappedCallTransactionsCapPrice_1ea0937a-d6b8-4a58-aa31-d324c2d9a7f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DebtInstrumentCappedCallTransactionsSharesCoverage_f23a17e8-e148-450a-b354-5eb1962d85be" xlink:href="fivn-20251231.xsd#fivn_DebtInstrumentCappedCallTransactionsSharesCoverage"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_fivn_DebtInstrumentCappedCallTransactionsSharesCoverage_f23a17e8-e148-450a-b354-5eb1962d85be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019b1145-34d1-7214-b501-9e2e851ceef6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64d256c8-8910-436d-93f2-cdcf89538a19" xlink:to="loc_us-gaap_LongTermDebt_019b1145-34d1-7214-b501-9e2e851ceef6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DebtScheduleofNetCarryingAmountofNotesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DebtScheduleofNetCarryingAmountofNotesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DebtScheduleofNetCarryingAmountofNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_b737aaef-1342-43ad-8f89-649aab4b85f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_24e6ca32-3afd-4387-a99d-7fe1b7e63474" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_b737aaef-1342-43ad-8f89-649aab4b85f5" xlink:to="loc_us-gaap_DebtInstrumentTable_24e6ca32-3afd-4387-a99d-7fe1b7e63474" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_ade8e7e6-3d8c-4bf4-881c-8b732ec6fe32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_24e6ca32-3afd-4387-a99d-7fe1b7e63474" xlink:to="loc_us-gaap_DebtInstrumentAxis_ade8e7e6-3d8c-4bf4-881c-8b732ec6fe32" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3f504e61-5d95-45d7-b42d-ae8887f32950" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_ade8e7e6-3d8c-4bf4-881c-8b732ec6fe32" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3f504e61-5d95-45d7-b42d-ae8887f32950" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2029Member_a69ca824-fbbe-4e94-bdba-605fda1bee15" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2029Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3f504e61-5d95-45d7-b42d-ae8887f32950" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2029Member_a69ca824-fbbe-4e94-bdba-605fda1bee15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_40beb7cb-12e4-4b97-9306-9b6083eb3351" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_24e6ca32-3afd-4387-a99d-7fe1b7e63474" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_40beb7cb-12e4-4b97-9306-9b6083eb3351" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0b7f6979-1c9e-4e54-8b0e-48e3580136c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_40beb7cb-12e4-4b97-9306-9b6083eb3351" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_0b7f6979-1c9e-4e54-8b0e-48e3580136c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_bb95752d-2b04-40e6-970a-97a16b8aacc2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_0b7f6979-1c9e-4e54-8b0e-48e3580136c7" xlink:to="loc_us-gaap_ConvertibleDebtMember_bb95752d-2b04-40e6-970a-97a16b8aacc2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_289a0aba-e184-48ce-9758-4a5d2cc0949d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_24e6ca32-3afd-4387-a99d-7fe1b7e63474" xlink:to="loc_us-gaap_DebtInstrumentLineItems_289a0aba-e184-48ce-9758-4a5d2cc0949d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019b1149-46e5-7006-aa2e-2cb15ab4345d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_289a0aba-e184-48ce-9758-4a5d2cc0949d" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019b1149-46e5-7006-aa2e-2cb15ab4345d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsGross_019b1149-559c-740f-aefa-a199bbfc1ab1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsGross"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_289a0aba-e184-48ce-9758-4a5d2cc0949d" xlink:to="loc_us-gaap_DeferredFinanceCostsGross_019b1149-559c-740f-aefa-a199bbfc1ab1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019b1149-618c-7073-9895-a7135cd8b737" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_289a0aba-e184-48ce-9758-4a5d2cc0949d" xlink:to="loc_us-gaap_LongTermDebt_019b1149-618c-7073-9895-a7135cd8b737" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/DebtScheduleofInterestExpenseRelatedtotheNotesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#DebtScheduleofInterestExpenseRelatedtotheNotesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/DebtScheduleofInterestExpenseRelatedtotheNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_34240a1e-2b42-48be-b9ef-4e4019f2e844" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_3348a5b3-c72b-4c30-9582-72c3290757c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_34240a1e-2b42-48be-b9ef-4e4019f2e844" xlink:to="loc_us-gaap_DebtInstrumentTable_3348a5b3-c72b-4c30-9582-72c3290757c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_e133ed02-bfb8-42ad-acd8-4bc3ed0697f4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_3348a5b3-c72b-4c30-9582-72c3290757c1" xlink:to="loc_us-gaap_DebtInstrumentAxis_e133ed02-bfb8-42ad-acd8-4bc3ed0697f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_f0d422a0-d216-4582-8294-cfff799090e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_e133ed02-bfb8-42ad-acd8-4bc3ed0697f4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_f0d422a0-d216-4582-8294-cfff799090e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2029Member_019b114a-2fbb-7187-9591-5bb5a2e03708" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2029Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f0d422a0-d216-4582-8294-cfff799090e8" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2029Member_019b114a-2fbb-7187-9591-5bb5a2e03708" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2025Member_016ba1c1-ac9e-4810-b2c8-e4cc74763102" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f0d422a0-d216-4582-8294-cfff799090e8" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2025Member_016ba1c1-ac9e-4810-b2c8-e4cc74763102" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_ee4f35ea-7f70-49fc-8ba4-2512fed23c86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_3348a5b3-c72b-4c30-9582-72c3290757c1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_ee4f35ea-7f70-49fc-8ba4-2512fed23c86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_8dd7750d-d9fe-4829-9fcb-34ec0e34c07d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ee4f35ea-7f70-49fc-8ba4-2512fed23c86" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_8dd7750d-d9fe-4829-9fcb-34ec0e34c07d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_c77370c7-9cd5-468e-91b4-e0645a29bbf7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_8dd7750d-d9fe-4829-9fcb-34ec0e34c07d" xlink:to="loc_us-gaap_ConvertibleDebtMember_c77370c7-9cd5-468e-91b4-e0645a29bbf7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_34d61d77-33bd-4c30-adbe-cc16aa95c104" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_3348a5b3-c72b-4c30-9582-72c3290757c1" xlink:to="loc_us-gaap_DebtInstrumentLineItems_34d61d77-33bd-4c30-adbe-cc16aa95c104" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_6ae5045b-48f2-44f6-bfcc-116fa742dfa6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_34d61d77-33bd-4c30-adbe-cc16aa95c104" xlink:to="loc_us-gaap_InterestExpenseDebt_6ae5045b-48f2-44f6-bfcc-116fa742dfa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_3d72e35a-9865-4582-81df-77c2b3910dbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_34d61d77-33bd-4c30-adbe-cc16aa95c104" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_3d72e35a-9865-4582-81df-77c2b3910dbd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_3a547c62-d032-4506-a8a4-ebdefcabcfd2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_34d61d77-33bd-4c30-adbe-cc16aa95c104" xlink:to="loc_us-gaap_InterestExpense_3a547c62-d032-4506-a8a4-ebdefcabcfd2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityCapitalStructureDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityCapitalStructureDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityCapitalStructureDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_6d217c2f-1104-476e-b778-cf0697eac9f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_6d217c2f-1104-476e-b778-cf0697eac9f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_949978f6-37f6-4aa1-aeae-704b9d03c625" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_949978f6-37f6-4aa1-aeae-704b9d03c625" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_bdaf0769-482f-4268-b76d-feba930c5dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_CommonStockSharesIssued_bdaf0769-482f-4268-b76d-feba930c5dc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_1630f944-5312-4de6-9047-30b05115b8a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_1630f944-5312-4de6-9047-30b05115b8a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_583d0102-274c-4630-aa01-ca4937d5dfd4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_583d0102-274c-4630-aa01-ca4937d5dfd4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_38dbed97-e4c2-495b-86be-0055746a3d69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_38dbed97-e4c2-495b-86be-0055746a3d69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_931dec42-14da-4288-8751-0041a750bf77" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_PreferredStockSharesIssued_931dec42-14da-4288-8751-0041a750bf77" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_eb161cf0-2eec-4430-8abc-f474c43f79ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ed3847ff-6998-42c6-bff6-1db406f25948" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_eb161cf0-2eec-4430-8abc-f474c43f79ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityShareRepurchaseProgramDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityShareRepurchaseProgramDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityShareRepurchaseProgramDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_019b137c-2ef8-7831-b8f3-cc79278c2140" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c33ad-39d9-7cd5-922b-937894c440ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_019b137c-2ef8-7831-b8f3-cc79278c2140" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c33ad-39d9-7cd5-922b-937894c440ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019c33ad-39d9-78f8-b16d-2406d6b92e19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c33ad-39d9-7cd5-922b-937894c440ee" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019c33ad-39d9-78f8-b16d-2406d6b92e19" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c33ad-39d9-7ef9-8d97-9c045ccf387f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019c33ad-39d9-78f8-b16d-2406d6b92e19" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c33ad-39d9-7ef9-8d97-9c045ccf387f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019c33ad-39d9-79b1-837b-c38ceff14ebd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019c33ad-39d9-7ef9-8d97-9c045ccf387f" xlink:to="loc_us-gaap_SubsequentEventMember_019c33ad-39d9-79b1-837b-c38ceff14ebd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c33ad-39d9-7cd5-922b-937894c440ee" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019b2252-11a6-77b3-801f-3a5a0cbebe3f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:to="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019b2252-11a6-77b3-801f-3a5a0cbebe3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_019b226c-02c4-77e6-b13d-b4af2418eb85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_019b226c-02c4-77e6-b13d-b4af2418eb85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019b226b-5304-7b93-ab8c-ea8377b402f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_019b226b-5304-7b93-ab8c-ea8377b402f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019c3317-0bbe-7b33-9b65-24e15db236f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019c3317-0bbe-7b33-9b65-24e15db236f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_StockRepurchaseProgramPercentageOfSharesToBePurchased_019c59c5-ad44-79c7-921f-596b43607c35" xlink:href="fivn-20251231.xsd#fivn_StockRepurchaseProgramPercentageOfSharesToBePurchased"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:to="loc_fivn_StockRepurchaseProgramPercentageOfSharesToBePurchased_019c59c5-ad44-79c7-921f-596b43607c35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019c33aa-0f3f-7a77-a1fb-b57af7fcb66c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019b137c-2ef8-7e6c-8f9e-202beba59bfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c33ad-39d9-79fb-9b84-058fd803a65c" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019b137c-2ef8-7e6c-8f9e-202beba59bfa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityScheduleofCommonStockReservedforFutureIssuanceDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityScheduleofCommonStockReservedforFutureIssuanceDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityScheduleofCommonStockReservedforFutureIssuanceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_79b1a629-0d2c-44fd-9376-ead6c3f885d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_55e3a000-9946-4067-ae94-0c772b0e509a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_79b1a629-0d2c-44fd-9376-ead6c3f885d4" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_55e3a000-9946-4067-ae94-0c772b0e509a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_2473e05a-eaeb-4482-b8aa-f79c6e8effe3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_55e3a000-9946-4067-ae94-0c772b0e509a" xlink:to="loc_us-gaap_AwardTypeAxis_2473e05a-eaeb-4482-b8aa-f79c6e8effe3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_384aa94a-280f-45ae-af45-c3fbf3d7c1a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_2473e05a-eaeb-4482-b8aa-f79c6e8effe3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_384aa94a-280f-45ae-af45-c3fbf3d7c1a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_df95b34a-78d9-48ba-b44b-9e16a6653e67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_384aa94a-280f-45ae-af45-c3fbf3d7c1a3" xlink:to="loc_us-gaap_EmployeeStockOptionMember_df95b34a-78d9-48ba-b44b-9e16a6653e67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_da3a7e5c-6390-401c-b4d8-c46c14440954" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_384aa94a-280f-45ae-af45-c3fbf3d7c1a3" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_da3a7e5c-6390-401c-b4d8-c46c14440954" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_eadfe080-3905-48c0-80c8-737463f7aee3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_384aa94a-280f-45ae-af45-c3fbf3d7c1a3" xlink:to="loc_us-gaap_EmployeeStockMember_eadfe080-3905-48c0-80c8-737463f7aee3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_c973d752-7f6d-4af3-967f-8a55db6c1f82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_55e3a000-9946-4067-ae94-0c772b0e509a" xlink:to="loc_us-gaap_PlanNameAxis_c973d752-7f6d-4af3-967f-8a55db6c1f82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_01106124-34c8-48bb-b4d9-673faea1a07a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_c973d752-7f6d-4af3-967f-8a55db6c1f82" xlink:to="loc_us-gaap_PlanNameDomain_01106124-34c8-48bb-b4d9-673faea1a07a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EquityIncentivePlan2014Member_09235c34-0670-4b44-b36c-56f6ccb324a5" xlink:href="fivn-20251231.xsd#fivn_EquityIncentivePlan2014Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_01106124-34c8-48bb-b4d9-673faea1a07a" xlink:to="loc_fivn_EquityIncentivePlan2014Member_09235c34-0670-4b44-b36c-56f6ccb324a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_e36c3313-2485-47c2-bc70-d2ff001fdae5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_55e3a000-9946-4067-ae94-0c772b0e509a" xlink:to="loc_us-gaap_ClassOfStockLineItems_e36c3313-2485-47c2-bc70-d2ff001fdae5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_c7f72255-8438-49a5-b599-cd9f62c3d8b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_e36c3313-2485-47c2-bc70-d2ff001fdae5" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_c7f72255-8438-49a5-b599-cd9f62c3d8b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityEquityIncentivePlansDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityEquityIncentivePlansDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityEquityIncentivePlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_f7516eb5-725f-4e29-9f7c-59e65dbc363f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3bff242b-d918-4d3b-b958-210f5acc8385" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_f7516eb5-725f-4e29-9f7c-59e65dbc363f" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3bff242b-d918-4d3b-b958-210f5acc8385" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_370aebc5-8e49-49dd-ae72-92b9cfc0b90c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3bff242b-d918-4d3b-b958-210f5acc8385" xlink:to="loc_us-gaap_PlanNameAxis_370aebc5-8e49-49dd-ae72-92b9cfc0b90c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_ade90d9f-75ab-4e35-a4b7-816031e3b4b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_370aebc5-8e49-49dd-ae72-92b9cfc0b90c" xlink:to="loc_us-gaap_PlanNameDomain_ade90d9f-75ab-4e35-a4b7-816031e3b4b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EquityIncentivePlan2014Member_de7efb06-a166-48f5-90b5-4773f5cab986" xlink:href="fivn-20251231.xsd#fivn_EquityIncentivePlan2014Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_ade90d9f-75ab-4e35-a4b7-816031e3b4b3" xlink:to="loc_fivn_EquityIncentivePlan2014Member_de7efb06-a166-48f5-90b5-4773f5cab986" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_19228339-df85-4b40-8eb2-cf4168a0c586" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3bff242b-d918-4d3b-b958-210f5acc8385" xlink:to="loc_us-gaap_AwardTypeAxis_19228339-df85-4b40-8eb2-cf4168a0c586" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2bf696f6-6e51-48dc-b92c-3808a5bbbca5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_19228339-df85-4b40-8eb2-cf4168a0c586" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2bf696f6-6e51-48dc-b92c-3808a5bbbca5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_404b6fe4-5322-401b-8325-dc182fef29e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2bf696f6-6e51-48dc-b92c-3808a5bbbca5" xlink:to="loc_us-gaap_EmployeeStockOptionMember_404b6fe4-5322-401b-8325-dc182fef29e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_fab698f7-caa7-4240-a7ac-50736c47c3c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2bf696f6-6e51-48dc-b92c-3808a5bbbca5" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_fab698f7-caa7-4240-a7ac-50736c47c3c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_9920aeb1-14b3-4206-9af4-ba20853f6972" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3bff242b-d918-4d3b-b958-210f5acc8385" xlink:to="loc_srt_RangeAxis_9920aeb1-14b3-4206-9af4-ba20853f6972" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a5f23e46-3cac-48fb-94f0-1b03177699cf" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_9920aeb1-14b3-4206-9af4-ba20853f6972" xlink:to="loc_srt_RangeMember_a5f23e46-3cac-48fb-94f0-1b03177699cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_b4174a47-0dc9-4a91-bfd7-8871799af016" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_a5f23e46-3cac-48fb-94f0-1b03177699cf" xlink:to="loc_srt_MinimumMember_b4174a47-0dc9-4a91-bfd7-8871799af016" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_9c625383-2fa1-472f-b325-0fde0c0b0f8c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_a5f23e46-3cac-48fb-94f0-1b03177699cf" xlink:to="loc_srt_MaximumMember_9c625383-2fa1-472f-b325-0fde0c0b0f8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3bff242b-d918-4d3b-b958-210f5acc8385" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_56d2f692-73aa-4069-aa38-765f4b3f0137" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_56d2f692-73aa-4069-aa38-765f4b3f0137" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommonStockCapitalSharesReservedforFutureIssuanceAnnualIncreasePercentage_abea6551-7dfc-422b-9c8b-0c2d5167ef81" xlink:href="fivn-20251231.xsd#fivn_CommonStockCapitalSharesReservedforFutureIssuanceAnnualIncreasePercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:to="loc_fivn_CommonStockCapitalSharesReservedforFutureIssuanceAnnualIncreasePercentage_abea6551-7dfc-422b-9c8b-0c2d5167ef81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_39bee5bb-e885-46a3-9b92-d6e14d2ed13d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_39bee5bb-e885-46a3-9b92-d6e14d2ed13d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_00ea7ab8-071a-4d43-975e-980e058e37cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_00ea7ab8-071a-4d43-975e-980e058e37cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareBasedCompensationSharesPerUnitsGranted_4571146b-4484-45c2-96c1-8d97e720d2de" xlink:href="fivn-20251231.xsd#fivn_ShareBasedCompensationSharesPerUnitsGranted"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:to="loc_fivn_ShareBasedCompensationSharesPerUnitsGranted_4571146b-4484-45c2-96c1-8d97e720d2de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_SharebasedCompensationArrangementbySharebasedPaymentAwardExpirationPeriodofVestedAward_c175d391-2f58-4fd9-b1a7-90a1f15bc05f" xlink:href="fivn-20251231.xsd#fivn_SharebasedCompensationArrangementbySharebasedPaymentAwardExpirationPeriodofVestedAward"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b9ff712a-fc57-43d3-bf97-5104eafd456c" xlink:to="loc_fivn_SharebasedCompensationArrangementbySharebasedPaymentAwardExpirationPeriodofVestedAward_c175d391-2f58-4fd9-b1a7-90a1f15bc05f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityScheduleofStockOptionActivitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityScheduleofStockOptionActivitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityScheduleofStockOptionActivitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_f08ebe06-0ca1-407a-96e2-05fa5198124f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_6c072068-7989-483c-b06e-78c8a7f8e436" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_f08ebe06-0ca1-407a-96e2-05fa5198124f" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_6c072068-7989-483c-b06e-78c8a7f8e436" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_f9c851f8-5ef2-4182-9164-d430a90e9ce4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_6c072068-7989-483c-b06e-78c8a7f8e436" xlink:to="loc_us-gaap_AwardTypeAxis_f9c851f8-5ef2-4182-9164-d430a90e9ce4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eba8491f-e807-4b7c-ac2a-1f681419cd66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_f9c851f8-5ef2-4182-9164-d430a90e9ce4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eba8491f-e807-4b7c-ac2a-1f681419cd66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_bb1b2a3a-24cc-4b36-a81d-dfaa78951d45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eba8491f-e807-4b7c-ac2a-1f681419cd66" xlink:to="loc_us-gaap_EmployeeStockOptionMember_bb1b2a3a-24cc-4b36-a81d-dfaa78951d45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_6c072068-7989-483c-b06e-78c8a7f8e436" xlink:to="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_d903f043-ba95-4ae0-8159-6cce99afc320" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_d903f043-ba95-4ae0-8159-6cce99afc320" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_68bb0b0c-49d8-4feb-b819-5bdf6a4ce788" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_68bb0b0c-49d8-4feb-b819-5bdf6a4ce788" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_9b725a5e-b98d-4287-9c3a-5273c95c2e64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_9b725a5e-b98d-4287-9c3a-5273c95c2e64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_c2b48264-8699-4969-bd54-820b254fcd55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_c2b48264-8699-4969-bd54-820b254fcd55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_d5955d84-1c66-4048-84ec-599b710cc531" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_d26caabc-f840-4498-815f-618878a18c79" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_d5955d84-1c66-4048-84ec-599b710cc531" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_b2bf1b7b-a1ef-40d9-a376-c4db47196bfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_b2bf1b7b-a1ef-40d9-a376-c4db47196bfa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_019c1e83-c3be-7593-bf7c-145adca8c70e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_019c1e83-c3be-7593-bf7c-145adca8c70e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_05ed7922-8a5f-42d5-862b-79d807158d74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_05ed7922-8a5f-42d5-862b-79d807158d74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_5d66f37a-9b74-4937-9241-2a679cdb8f7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_5d66f37a-9b74-4937-9241-2a679cdb8f7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_a582741b-fcad-4d05-a8c8-3a4f676c3d9f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_a582741b-fcad-4d05-a8c8-3a4f676c3d9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_415236d8-6874-4ae9-9286-1e40ed7ec214" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_415236d8-6874-4ae9-9286-1e40ed7ec214" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_cd9bf1de-5e11-4afb-bd5e-fec6c3b62c0c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1f2811cb-4dc6-4459-94c0-a2641b8723cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_cd9bf1de-5e11-4afb-bd5e-fec6c3b62c0c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_0ecb1bd3-5625-4cb3-8029-b5870e10671d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_0ecb1bd3-5625-4cb3-8029-b5870e10671d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_019c1e84-41b0-7865-82ac-08470bbcc6b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_019c1e84-41b0-7865-82ac-08470bbcc6b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_a313b6d7-a710-4ba1-b9f0-6f84385e329f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_a313b6d7-a710-4ba1-b9f0-6f84385e329f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_934f48e2-bb9b-4a82-bf14-01893290e5dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_934f48e2-bb9b-4a82-bf14-01893290e5dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract_2ae02798-be81-431e-8de0-c1ab7e41055d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract_2ae02798-be81-431e-8de0-c1ab7e41055d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_c3671b4a-6800-4576-a55f-0b086e9782cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract_2ae02798-be81-431e-8de0-c1ab7e41055d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_c3671b4a-6800-4576-a55f-0b086e9782cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_019c1e84-70cd-7268-bf27-245d93ea96e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract_2ae02798-be81-431e-8de0-c1ab7e41055d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_019c1e84-70cd-7268-bf27-245d93ea96e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_af244221-686e-4cdf-a94c-cd867be56f5e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract_2ae02798-be81-431e-8de0-c1ab7e41055d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_af244221-686e-4cdf-a94c-cd867be56f5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_019c1e85-0acc-789d-9e4c-a02caa7641ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestAbstract_2ae02798-be81-431e-8de0-c1ab7e41055d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_019c1e85-0acc-789d-9e4c-a02caa7641ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharePrice_ca64099c-9738-49ab-8488-9815d5bf68a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharePrice"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_SharePrice_ca64099c-9738-49ab-8488-9815d5bf68a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_a819d496-f305-49ff-8fef-3380835dd2b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_83d84677-32db-470a-9fa5-c99c1bec0a6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_a819d496-f305-49ff-8fef-3380835dd2b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_16602415-9d16-4495-8e14-ee180adaba6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_a819d496-f305-49ff-8fef-3380835dd2b2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_16602415-9d16-4495-8e14-ee180adaba6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_38a47dad-14a3-4d23-9546-8eac796d0b98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_a819d496-f305-49ff-8fef-3380835dd2b2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_38a47dad-14a3-4d23-9546-8eac796d0b98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_3e67fc03-7c89-4ce9-961c-7ff78d883d2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_a819d496-f305-49ff-8fef-3380835dd2b2" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_3e67fc03-7c89-4ce9-961c-7ff78d883d2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_3c18c77b-5400-41d0-90a9-e58ca584154e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_a819d496-f305-49ff-8fef-3380835dd2b2" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_3c18c77b-5400-41d0-90a9-e58ca584154e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityScheduleofRSUActivitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityScheduleofRSUActivitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityScheduleofRSUActivitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_3e2dd6ad-f708-4ec5-a5b7-9ef569e2657e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6b4605ac-4e43-4e0b-b9c5-48294a81c00e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_3e2dd6ad-f708-4ec5-a5b7-9ef569e2657e" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6b4605ac-4e43-4e0b-b9c5-48294a81c00e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_353b0f33-1969-40f1-9117-8d7d47530a41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6b4605ac-4e43-4e0b-b9c5-48294a81c00e" xlink:to="loc_us-gaap_AwardTypeAxis_353b0f33-1969-40f1-9117-8d7d47530a41" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_313a7906-74ae-4fcc-91f6-19f4ac238f4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_353b0f33-1969-40f1-9117-8d7d47530a41" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_313a7906-74ae-4fcc-91f6-19f4ac238f4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_975606f4-7d4e-4a8e-8906-5e28df798b42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_313a7906-74ae-4fcc-91f6-19f4ac238f4b" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_975606f4-7d4e-4a8e-8906-5e28df798b42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedAndMarketBasedRestrictedStockUnitsPRSUsMember_8564b75c-9ab7-4d39-a79f-78c365a1e1c3" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedAndMarketBasedRestrictedStockUnitsPRSUsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_313a7906-74ae-4fcc-91f6-19f4ac238f4b" xlink:to="loc_fivn_PerformanceBasedAndMarketBasedRestrictedStockUnitsPRSUsMember_8564b75c-9ab7-4d39-a79f-78c365a1e1c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5e1456d7-37ac-40ea-a64f-f1417ee72a85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6b4605ac-4e43-4e0b-b9c5-48294a81c00e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5e1456d7-37ac-40ea-a64f-f1417ee72a85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5e1456d7-37ac-40ea-a64f-f1417ee72a85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_f2e8c709-2b14-4d2a-ab81-897858106894" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_f2e8c709-2b14-4d2a-ab81-897858106894" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_b2250162-022b-442f-b6bb-88d1df29a471" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_b2250162-022b-442f-b6bb-88d1df29a471" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_a1af4926-3fce-4489-b251-2b24a47134e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_a1af4926-3fce-4489-b251-2b24a47134e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_6cfdbd83-bd10-4762-9ea3-6a1575eb63f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_6cfdbd83-bd10-4762-9ea3-6a1575eb63f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_f010d150-1be2-434f-9afc-c2ac8e9d916d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_b9f1c7d7-7883-4e17-ae73-1b8bdf583649" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_f010d150-1be2-434f-9afc-c2ac8e9d916d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5e1456d7-37ac-40ea-a64f-f1417ee72a85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_06807c18-1f47-4116-924d-511c5f69a35e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_06807c18-1f47-4116-924d-511c5f69a35e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c5001116-c24d-4d41-96e2-e87bdc53503f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c5001116-c24d-4d41-96e2-e87bdc53503f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_4fc06240-5b6d-4b56-9d64-551b9a8b9862" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_4fc06240-5b6d-4b56-9d64-551b9a8b9862" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_1e464b22-b764-4cd2-974c-31101e24f2c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_1e464b22-b764-4cd2-974c-31101e24f2c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_fcf93a98-7208-41b0-9ef6-3fba3f0cc71c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d70a45a8-836d-4a69-8981-841599fe82a3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_fcf93a98-7208-41b0-9ef6-3fba3f0cc71c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_019b1371-a993-7c6b-a642-ffda159eb98c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5e1456d7-37ac-40ea-a64f-f1417ee72a85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_019b1371-a993-7c6b-a642-ffda159eb98c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityPerformanceBasedRestrictedStockUnitsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityPerformanceBasedRestrictedStockUnitsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityPerformanceBasedRestrictedStockUnitsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_bce85785-f768-4eff-86ae-65b3c5669eec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:href="fivn-20251231.xsd#fivn_StockholdersEquityCapitalStructureTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_bce85785-f768-4eff-86ae-65b3c5669eec" xlink:to="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b2237-a099-7ff6-ad2b-4ff7e95ce8a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:to="loc_us-gaap_AwardTypeAxis_019b2237-a099-7ff6-ad2b-4ff7e95ce8a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_019b2237-a099-7ff6-ad2b-4ff7e95ce8a5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_MarketBasedPRSUsMember_019b2237-a099-7348-9d42-91934b3bbc83" xlink:href="fivn-20251231.xsd#fivn_MarketBasedPRSUsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:to="loc_fivn_MarketBasedPRSUsMember_019b2237-a099-7348-9d42-91934b3bbc83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUsMember_019b2237-a099-7ee9-9adc-dbc1b7581807" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedRestrictedStockUnitsPRSUsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:to="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUsMember_019b2237-a099-7ee9-9adc-dbc1b7581807" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUs20222024Member_019c1ea4-e65b-7237-9f77-b49deccebf52" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedRestrictedStockUnitsPRSUs20222024Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:to="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUs20222024Member_019c1ea4-e65b-7237-9f77-b49deccebf52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUs20232025Member_019b2237-ec08-724b-977c-67ecc0e802ea" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedRestrictedStockUnitsPRSUs20232025Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:to="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUs20232025Member_019b2237-ec08-724b-977c-67ecc0e802ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUs20242026Member_019c66de-5d1d-73b6-9b3b-804bea454345" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedRestrictedStockUnitsPRSUs20242026Member"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:to="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUs20242026Member_019c66de-5d1d-73b6-9b3b-804bea454345" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_RevenueBasedPRSUsMember_019c33a6-25e6-70f0-8baa-91baa3645eb6" xlink:href="fivn-20251231.xsd#fivn_RevenueBasedPRSUsMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b2237-a099-702e-b08d-53821a747b97" xlink:to="loc_fivn_RevenueBasedPRSUsMember_019c33a6-25e6-70f0-8baa-91baa3645eb6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019b2237-a099-7f7d-aed3-3f4e7252142c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:to="loc_srt_RangeAxis_019b2237-a099-7f7d-aed3-3f4e7252142c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b2237-a099-7ced-b9a8-42c66b46cdb9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019b2237-a099-7f7d-aed3-3f4e7252142c" xlink:to="loc_srt_RangeMember_019b2237-a099-7ced-b9a8-42c66b46cdb9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019b2237-a099-703f-aa67-90905d4df0bf" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019b2237-a099-7ced-b9a8-42c66b46cdb9" xlink:to="loc_srt_MinimumMember_019b2237-a099-703f-aa67-90905d4df0bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019b2237-a099-7c40-82d8-fe9a2caac3ca" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019b2237-a099-7ced-b9a8-42c66b46cdb9" xlink:to="loc_srt_MaximumMember_019b2237-a099-7c40-82d8-fe9a2caac3ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EquityInstrumentConditionAxis_019b2237-a099-75c5-ad85-ef135aca2776" xlink:href="fivn-20251231.xsd#fivn_EquityInstrumentConditionAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:to="loc_fivn_EquityInstrumentConditionAxis_019b2237-a099-75c5-ad85-ef135aca2776" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:href="fivn-20251231.xsd#fivn_EquityInstrumentConditionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionAxis_019b2237-a099-75c5-ad85-ef135aca2776" xlink:to="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareholderForPerformanceAnyPeriodIsNegativeMember_019b2237-a099-7667-8048-14c65f04fca9" xlink:href="fivn-20251231.xsd#fivn_ShareholderForPerformanceAnyPeriodIsNegativeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_ShareholderForPerformanceAnyPeriodIsNegativeMember_019b2237-a099-7667-8048-14c65f04fca9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ExecutiveEmploymentTerminatesDueToDeathByEndOf2024Member_019b2237-a099-7818-8301-d53db223995d" xlink:href="fivn-20251231.xsd#fivn_ExecutiveEmploymentTerminatesDueToDeathByEndOf2024Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_ExecutiveEmploymentTerminatesDueToDeathByEndOf2024Member_019b2237-a099-7818-8301-d53db223995d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ExecutiveEmploymentTerminatesDueToDisabilityByEndOf2024Member_019b2237-a099-7f54-9758-621971d20a14" xlink:href="fivn-20251231.xsd#fivn_ExecutiveEmploymentTerminatesDueToDisabilityByEndOf2024Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_ExecutiveEmploymentTerminatesDueToDisabilityByEndOf2024Member_019b2237-a099-7f54-9758-621971d20a14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PayoutAtThe25thTSRPercentileMember_019c1ea1-ab4a-714f-8d84-5743af069108" xlink:href="fivn-20251231.xsd#fivn_PayoutAtThe25thTSRPercentileMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_PayoutAtThe25thTSRPercentileMember_019c1ea1-ab4a-714f-8d84-5743af069108" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PayoutAtThe55thTSRPercentileMember_019c1ea2-3687-7a06-b4d0-0bff759dbb62" xlink:href="fivn-20251231.xsd#fivn_PayoutAtThe55thTSRPercentileMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_PayoutAtThe55thTSRPercentileMember_019c1ea2-3687-7a06-b4d0-0bff759dbb62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PayoutAtThe90thTSRPercentileMember_019c1ea2-8c01-75ee-9a65-95b33f9e8697" xlink:href="fivn-20251231.xsd#fivn_PayoutAtThe90thTSRPercentileMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_PayoutAtThe90thTSRPercentileMember_019c1ea2-8c01-75ee-9a65-95b33f9e8697" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PayoutAtThe75thTSRPercentileMember_019c1ea3-ef12-7261-ac65-93f7cad536a9" xlink:href="fivn-20251231.xsd#fivn_PayoutAtThe75thTSRPercentileMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_EquityInstrumentConditionDomain_019b2237-a099-74a0-b6e2-6d325e71d5fc" xlink:to="loc_fivn_PayoutAtThe75thTSRPercentileMember_019c1ea3-ef12-7261-ac65-93f7cad536a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019c1f86-c7c1-7ec3-a851-857af5f705d9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:to="loc_srt_StatementScenarioAxis_019c1f86-c7c1-7ec3-a851-857af5f705d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019c1f86-c7c1-7ecf-a0eb-e42063034b9b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementScenarioAxis_019c1f86-c7c1-7ec3-a851-857af5f705d9" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019c1f86-c7c1-7ecf-a0eb-e42063034b9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_019c1f87-2453-7692-a95a-bcb0fc933619" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioForecastMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019c1f86-c7c1-7ecf-a0eb-e42063034b9b" xlink:to="loc_srt_ScenarioForecastMember_019c1f87-2453-7692-a95a-bcb0fc933619" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:href="fivn-20251231.xsd#fivn_StockholdersEquityCapitalStructureLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureTable_019b1363-71f6-70e5-b4f6-34ec5a910370" xlink:to="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019b2237-a099-755b-b9d7-9651bdcece67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019b2237-a099-755b-b9d7-9651bdcece67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThenOptionsWeightedAverageGrantDateFairValue_019b2237-a099-7c45-91e4-d1bfb2d5bf31" xlink:href="fivn-20251231.xsd#fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThenOptionsWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:to="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThenOptionsWeightedAverageGrantDateFairValue_019b2237-a099-7c45-91e4-d1bfb2d5bf31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfTargetedAward_019b2237-a099-740a-a166-0906035f4ec0" xlink:href="fivn-20251231.xsd#fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfTargetedAward"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:to="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfTargetedAward_019b2237-a099-740a-a166-0906035f4ec0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfTotalShareholderReturn_019b2237-ec08-7cc0-903d-2c96985d1721" xlink:href="fivn-20251231.xsd#fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfTotalShareholderReturn"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:to="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfTotalShareholderReturn_019b2237-ec08-7cc0-903d-2c96985d1721" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfRelativeTotalShareholderReturnRanking_019b2237-ec08-7296-9d17-0406fbf01c16" xlink:href="fivn-20251231.xsd#fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfRelativeTotalShareholderReturnRanking"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_StockholdersEquityCapitalStructureLineItems_019b1363-71f6-7d04-8d8d-89e195bb412f" xlink:to="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfRelativeTotalShareholderReturnRanking_019b2237-ec08-7296-9d17-0406fbf01c16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityESPPDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityESPPDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityESPPDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_37ded9ab-50cb-4939-9e15-93cfcc6322ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c7bbc982-bf60-4212-a135-08d6b7f839bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_37ded9ab-50cb-4939-9e15-93cfcc6322ed" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c7bbc982-bf60-4212-a135-08d6b7f839bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_f6d11d39-89ac-4f3b-9f13-351564b41146" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c7bbc982-bf60-4212-a135-08d6b7f839bd" xlink:to="loc_us-gaap_AwardTypeAxis_f6d11d39-89ac-4f3b-9f13-351564b41146" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aaeebc27-abf2-45db-8ed2-452407957bfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_f6d11d39-89ac-4f3b-9f13-351564b41146" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aaeebc27-abf2-45db-8ed2-452407957bfa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_0898bfe0-2a70-4c15-a2fb-5dc70b8c2c0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aaeebc27-abf2-45db-8ed2-452407957bfa" xlink:to="loc_us-gaap_EmployeeStockMember_0898bfe0-2a70-4c15-a2fb-5dc70b8c2c0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c7bbc982-bf60-4212-a135-08d6b7f839bd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate_18fb7046-ffac-4de8-bc63-5e4d5a1326d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate_18fb7046-ffac-4de8-bc63-5e4d5a1326d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_17d2f8c9-c39e-45ca-af62-dbf50c38fe9c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_17d2f8c9-c39e-45ca-af62-dbf50c38fe9c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardESPPOfferingPeriod_3fcd9d64-9c7a-49b9-b635-5000a21841f0" xlink:href="fivn-20251231.xsd#fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardESPPOfferingPeriod"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_fivn_ShareBasedCompensationArrangementByShareBasedPaymentAwardESPPOfferingPeriod_3fcd9d64-9c7a-49b9-b635-5000a21841f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee_d63bf27a-44a2-4557-8a83-17b3adf63895" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee_d63bf27a-44a2-4557-8a83-17b3adf63895" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_a3a18e2a-4760-4ef7-bd5a-3d84d8d7e86e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_a3a18e2a-4760-4ef7-bd5a-3d84d8d7e86e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommonStockCapitalSharesReservedforFutureIssuanceAnnualIncreasePercentage_b652d743-a88b-40c4-b01d-95061e692616" xlink:href="fivn-20251231.xsd#fivn_CommonStockCapitalSharesReservedforFutureIssuanceAnnualIncreasePercentage"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_fivn_CommonStockCapitalSharesReservedforFutureIssuanceAnnualIncreasePercentage_b652d743-a88b-40c4-b01d-95061e692616" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumAnnualIncreaseofSharesAuthorized_f86e99cd-9380-4bc1-9e95-c055ec3e2cb3" xlink:href="fivn-20251231.xsd#fivn_SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumAnnualIncreaseofSharesAuthorized"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_fivn_SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumAnnualIncreaseofSharesAuthorized_f86e99cd-9380-4bc1-9e95-c055ec3e2cb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_a2474041-1916-4a98-b5ce-53b9ed07ed15" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_a2474041-1916-4a98-b5ce-53b9ed07ed15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_5b46729c-97fa-4929-b916-6a384e30aa30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_a4844773-96e8-4593-98f3-84db39178787" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_5b46729c-97fa-4929-b916-6a384e30aa30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityScheduleofStockBasedCompensationDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityScheduleofStockBasedCompensationDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityScheduleofStockBasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_2c3567e4-dcee-4a8a-9738-14a8e87f8216" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_740156dc-b3a3-4c3e-85b0-2c3ac90e93eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_2c3567e4-dcee-4a8a-9738-14a8e87f8216" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_740156dc-b3a3-4c3e-85b0-2c3ac90e93eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_02d377c2-55c3-40e0-8ec9-c21fbec20e1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_740156dc-b3a3-4c3e-85b0-2c3ac90e93eb" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_02d377c2-55c3-40e0-8ec9-c21fbec20e1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_c4c21211-5d90-45c3-8620-0383b193e03a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_02d377c2-55c3-40e0-8ec9-c21fbec20e1c" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_c4c21211-5d90-45c3-8620-0383b193e03a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_0eae7c76-3ef9-4c8b-aeca-f7ba307f723b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_c4c21211-5d90-45c3-8620-0383b193e03a" xlink:to="loc_us-gaap_CostOfSalesMember_0eae7c76-3ef9-4c8b-aeca-f7ba307f723b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_acc7b95c-4ac4-475b-b553-bbbcd2b9ac52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_c4c21211-5d90-45c3-8620-0383b193e03a" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_acc7b95c-4ac4-475b-b553-bbbcd2b9ac52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_a7bc252a-0ec4-4e6f-920c-289c75bd94b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_c4c21211-5d90-45c3-8620-0383b193e03a" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_a7bc252a-0ec4-4e6f-920c-289c75bd94b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_a2e38a8d-5fb7-4667-868f-cc1a9378aa1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_c4c21211-5d90-45c3-8620-0383b193e03a" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_a2e38a8d-5fb7-4667-868f-cc1a9378aa1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_d7458749-bd44-4c98-8b0e-5ee1599b037e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_740156dc-b3a3-4c3e-85b0-2c3ac90e93eb" xlink:to="loc_us-gaap_AwardTypeAxis_d7458749-bd44-4c98-8b0e-5ee1599b037e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_dda4d8d8-7246-407a-9442-396228848dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_d7458749-bd44-4c98-8b0e-5ee1599b037e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_dda4d8d8-7246-407a-9442-396228848dc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_e96e73d0-8cb2-4537-9ad4-5daf92042307" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_dda4d8d8-7246-407a-9442-396228848dc9" xlink:to="loc_us-gaap_EmployeeStockOptionMember_e96e73d0-8cb2-4537-9ad4-5daf92042307" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_bb928a2d-a195-414f-9d31-1f6f3890573b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_dda4d8d8-7246-407a-9442-396228848dc9" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_bb928a2d-a195-414f-9d31-1f6f3890573b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedRestrictedStockUnitsMember_98195c73-f656-4659-90ac-7277cc88e2b4" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_dda4d8d8-7246-407a-9442-396228848dc9" xlink:to="loc_fivn_PerformanceBasedRestrictedStockUnitsMember_98195c73-f656-4659-90ac-7277cc88e2b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_aaa45f68-cb5c-4320-be11-c8749569808a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_dda4d8d8-7246-407a-9442-396228848dc9" xlink:to="loc_us-gaap_EmployeeStockMember_aaa45f68-cb5c-4320-be11-c8749569808a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d31463f9-7874-4d6d-9393-08e58ae1fb6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_740156dc-b3a3-4c3e-85b0-2c3ac90e93eb" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d31463f9-7874-4d6d-9393-08e58ae1fb6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_ec988d7f-d095-4613-bf29-5c72445f5f22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d31463f9-7874-4d6d-9393-08e58ae1fb6e" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_ec988d7f-d095-4613-bf29-5c72445f5f22" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_703b0b85-f2c8-4005-8c5a-0f3da4ac93c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d31463f9-7874-4d6d-9393-08e58ae1fb6e" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_703b0b85-f2c8-4005-8c5a-0f3da4ac93c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_d0615baa-775c-4a53-b102-5907fae451a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d31463f9-7874-4d6d-9393-08e58ae1fb6e" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_d0615baa-775c-4a53-b102-5907fae451a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/StockholdersEquityScheduleofOptionandESPPValuationAssumptionsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#StockholdersEquityScheduleofOptionandESPPValuationAssumptionsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/StockholdersEquityScheduleofOptionandESPPValuationAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_7cfa98e0-9245-4c44-aa27-2346b1465233" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_488b3e2f-8252-49e6-bbf0-55c897ab9feb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_7cfa98e0-9245-4c44-aa27-2346b1465233" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_488b3e2f-8252-49e6-bbf0-55c897ab9feb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_a6e87988-fd8a-4ead-91c0-76335771ac2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_488b3e2f-8252-49e6-bbf0-55c897ab9feb" xlink:to="loc_us-gaap_AwardTypeAxis_a6e87988-fd8a-4ead-91c0-76335771ac2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_517091e3-23e2-44cd-a445-f9324c690f7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_a6e87988-fd8a-4ead-91c0-76335771ac2b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_517091e3-23e2-44cd-a445-f9324c690f7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUsMember_94ec103a-a723-4481-b197-16afd918da36" xlink:href="fivn-20251231.xsd#fivn_PerformanceBasedRestrictedStockUnitsPRSUsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_517091e3-23e2-44cd-a445-f9324c690f7f" xlink:to="loc_fivn_PerformanceBasedRestrictedStockUnitsPRSUsMember_94ec103a-a723-4481-b197-16afd918da36" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_d3ca8e90-345d-40c5-bcd5-bc8aa90ce367" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_517091e3-23e2-44cd-a445-f9324c690f7f" xlink:to="loc_us-gaap_EmployeeStockMember_d3ca8e90-345d-40c5-bcd5-bc8aa90ce367" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_34168737-51d3-4a82-a4e2-8eedc1d20407" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_488b3e2f-8252-49e6-bbf0-55c897ab9feb" xlink:to="loc_us-gaap_ClassOfStockLineItems_34168737-51d3-4a82-a4e2-8eedc1d20407" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dbe1de14-fdd1-49f5-84ed-9006cb28f45e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_34168737-51d3-4a82-a4e2-8eedc1d20407" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dbe1de14-fdd1-49f5-84ed-9006cb28f45e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_10c9828a-9fe5-4b12-b07c-ab763f6d65ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_34168737-51d3-4a82-a4e2-8eedc1d20407" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_10c9828a-9fe5-4b12-b07c-ab763f6d65ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_17968978-5ec3-480c-a159-5b1746e5b04f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_34168737-51d3-4a82-a4e2-8eedc1d20407" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_17968978-5ec3-480c-a159-5b1746e5b04f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_38c26b6b-2373-4bdc-b326-73c5e9871a82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_34168737-51d3-4a82-a4e2-8eedc1d20407" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_38c26b6b-2373-4bdc-b326-73c5e9871a82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/NetIncomeLossPerShareScheduleofBasicandDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#NetIncomeLossPerShareScheduleofBasicandDilutedNetLossPerShareDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/NetIncomeLossPerShareScheduleofBasicandDilutedNetLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_2ff091c3-5861-46f9-ab4a-5f5162e61f14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_00795926-2407-4fce-82bc-faf8f1afac47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2ff091c3-5861-46f9-ab4a-5f5162e61f14" xlink:to="loc_us-gaap_NetIncomeLoss_00795926-2407-4fce-82bc-faf8f1afac47" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b2286-5db8-75bd-bc29-d53d35a13ad6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2ff091c3-5861-46f9-ab4a-5f5162e61f14" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b2286-5db8-75bd-bc29-d53d35a13ad6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_6e926aee-3a06-4b59-b328-13b22cc572b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b2286-5db8-75bd-bc29-d53d35a13ad6" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_6e926aee-3a06-4b59-b328-13b22cc572b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_1f61a3eb-4a2b-422d-a73d-78712f1fafa1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b2286-5db8-75bd-bc29-d53d35a13ad6" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_1f61a3eb-4a2b-422d-a73d-78712f1fafa1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareReconciliationAbstract_019b2289-9b0c-72e4-b186-e4e3923aaa40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareReconciliationAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2ff091c3-5861-46f9-ab4a-5f5162e61f14" xlink:to="loc_us-gaap_EarningsPerShareReconciliationAbstract_019b2289-9b0c-72e4-b186-e4e3923aaa40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_787c93ab-35f8-4b9e-8391-ba1e3be202a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_019b2289-9b0c-72e4-b186-e4e3923aaa40" xlink:to="loc_us-gaap_EarningsPerShareBasic_787c93ab-35f8-4b9e-8391-ba1e3be202a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_40a60af3-803d-4258-af9d-6a8793ca9cb6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_019b2289-9b0c-72e4-b186-e4e3923aaa40" xlink:to="loc_us-gaap_EarningsPerShareDiluted_40a60af3-803d-4258-af9d-6a8793ca9cb6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/NetIncomeLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#NetIncomeLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofDilutedNetLossPerShareDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/NetIncomeLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofDilutedNetLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_fd256a0c-66b0-4d57-8037-3be40967cbc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_ed2d0ef3-eb2e-4ef8-8015-895fb651bb8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_fd256a0c-66b0-4d57-8037-3be40967cbc9" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_ed2d0ef3-eb2e-4ef8-8015-895fb651bb8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0f657d4a-a5ce-4785-a654-4d581b0f2300" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_ed2d0ef3-eb2e-4ef8-8015-895fb651bb8a" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0f657d4a-a5ce-4785-a654-4d581b0f2300" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b045c6f1-3730-47b8-bac4-e3378f869235" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0f657d4a-a5ce-4785-a654-4d581b0f2300" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b045c6f1-3730-47b8-bac4-e3378f869235" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_ebe88661-84be-41fd-9dcd-7383ca1eb9f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b045c6f1-3730-47b8-bac4-e3378f869235" xlink:to="loc_us-gaap_EmployeeStockOptionMember_ebe88661-84be-41fd-9dcd-7383ca1eb9f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_f40b2a05-10ce-46c6-b248-7969cea287ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b045c6f1-3730-47b8-bac4-e3378f869235" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_f40b2a05-10ce-46c6-b248-7969cea287ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtSecuritiesMember_b46a90fa-167d-4fb4-9f9c-0b5df765b18e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtSecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b045c6f1-3730-47b8-bac4-e3378f869235" xlink:to="loc_us-gaap_ConvertibleDebtSecuritiesMember_b46a90fa-167d-4fb4-9f9c-0b5df765b18e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_402175c4-7a4d-4347-a10a-17d348deb4b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_ed2d0ef3-eb2e-4ef8-8015-895fb651bb8a" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_402175c4-7a4d-4347-a10a-17d348deb4b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_168045fb-cfc8-4734-a9fa-c588dd2effe9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_402175c4-7a4d-4347-a10a-17d348deb4b4" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_168045fb-cfc8-4734-a9fa-c588dd2effe9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesScheduleofComponentsofLossBeforeIncomeTaxesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesScheduleofComponentsofLossBeforeIncomeTaxesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesScheduleofComponentsofLossBeforeIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_606abc43-7c4b-45b4-8e37-b93eec62845b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_6cfee9bb-86b2-4ac4-bfc1-3e20f594f922" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_606abc43-7c4b-45b4-8e37-b93eec62845b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_6cfee9bb-86b2-4ac4-bfc1-3e20f594f922" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_de9cd439-e1ab-48a0-b906-c098ecd4f8cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_606abc43-7c4b-45b4-8e37-b93eec62845b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_de9cd439-e1ab-48a0-b906-c098ecd4f8cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_fdc8609a-6345-4b80-a6d1-b86d1cc908b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_606abc43-7c4b-45b4-8e37-b93eec62845b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_fdc8609a-6345-4b80-a6d1-b86d1cc908b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesScheduleofComponentsofProvisionforIncomeTaxesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesScheduleofComponentsofProvisionforIncomeTaxesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesScheduleofComponentsofProvisionforIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_27877e0c-78e2-4f4a-8307-5a50df2365d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_96a6eac1-3d12-4b6c-acd7-b99f56460cb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_27877e0c-78e2-4f4a-8307-5a50df2365d2" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_96a6eac1-3d12-4b6c-acd7-b99f56460cb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_7b103dcf-ae5e-4faa-8dbb-2a7b5642aa6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentFederalTaxExpenseBenefit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_96a6eac1-3d12-4b6c-acd7-b99f56460cb0" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_7b103dcf-ae5e-4faa-8dbb-2a7b5642aa6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_a5091862-4ee4-4ef0-926f-965f5d9ccbeb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_96a6eac1-3d12-4b6c-acd7-b99f56460cb0" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_a5091862-4ee4-4ef0-926f-965f5d9ccbeb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_1c91ccf1-6e87-4e6f-810c-0597300899d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_96a6eac1-3d12-4b6c-acd7-b99f56460cb0" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_1c91ccf1-6e87-4e6f-810c-0597300899d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_55ca6978-4e39-42ff-ae65-24ecc96a360b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_96a6eac1-3d12-4b6c-acd7-b99f56460cb0" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_55ca6978-4e39-42ff-ae65-24ecc96a360b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_040cbd9a-4b14-4288-a095-aec745005299" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_27877e0c-78e2-4f4a-8307-5a50df2365d2" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_040cbd9a-4b14-4288-a095-aec745005299" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_168a2084-2730-42e6-abcf-c73b4b77617a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_040cbd9a-4b14-4288-a095-aec745005299" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_168a2084-2730-42e6-abcf-c73b4b77617a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_6b49b3ca-f1d5-4236-8b68-65998b599e3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_040cbd9a-4b14-4288-a095-aec745005299" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_6b49b3ca-f1d5-4236-8b68-65998b599e3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_fd8179f4-b6de-412d-81f0-05df94f964ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_040cbd9a-4b14-4288-a095-aec745005299" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_fd8179f4-b6de-412d-81f0-05df94f964ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8134b9c-9ef5-406e-8bcf-ebe57fb1c0a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_040cbd9a-4b14-4288-a095-aec745005299" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8134b9c-9ef5-406e-8bcf-ebe57fb1c0a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_b4ce9998-1e7c-42e5-bad6-d507122c5d62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_27877e0c-78e2-4f4a-8307-5a50df2365d2" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_b4ce9998-1e7c-42e5-bad6-d507122c5d62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxAmountReconciliationDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesScheduleofEffectiveIncomeTaxAmountReconciliationDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxAmountReconciliationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_2c046a50-f8b7-4d12-88e3-12ee9021a2b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019bdb1d-0f25-738d-b152-60726bdbbf2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_2c046a50-f8b7-4d12-88e3-12ee9021a2b2" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019bdb1d-0f25-738d-b152-60726bdbbf2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019bdb1d-0f25-7aac-ba90-4b3fe443e017" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019bdb1d-0f25-738d-b152-60726bdbbf2f" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019bdb1d-0f25-7aac-ba90-4b3fe443e017" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019bdb1d-0f25-70ca-8dec-4cccbc0277fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019bdb1d-0f25-7aac-ba90-4b3fe443e017" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019bdb1d-0f25-70ca-8dec-4cccbc0277fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_019bdb38-642b-7207-a95f-8469ba23f804" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticCountryMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019bdb1d-0f25-70ca-8dec-4cccbc0277fe" xlink:to="loc_us-gaap_DomesticCountryMember_019bdb38-642b-7207-a95f-8469ba23f804" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019bdb1d-0f25-763e-b656-b285d8709dca" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DomesticCountryMember_019bdb38-642b-7207-a95f-8469ba23f804" xlink:to="loc_country_US_019bdb1d-0f25-763e-b656-b285d8709dca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_019bdb37-ecf1-7e92-ba3a-926c8db8a16c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019bdb1d-0f25-70ca-8dec-4cccbc0277fe" xlink:to="loc_us-gaap_ForeignCountryMember_019bdb37-ecf1-7e92-ba3a-926c8db8a16c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_AU_019bdb1d-0f25-7124-a684-3cb21d85476a" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_AU"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019bdb37-ecf1-7e92-ba3a-926c8db8a16c" xlink:to="loc_country_AU_019bdb1d-0f25-7124-a684-3cb21d85476a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019bdb1d-0f25-75ff-bb8a-4819b33274dc" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019bdb37-ecf1-7e92-ba3a-926c8db8a16c" xlink:to="loc_country_GB_019bdb1d-0f25-75ff-bb8a-4819b33274dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_IN_019bdb1d-0f25-795f-bdee-167f5691b108" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IN"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019bdb37-ecf1-7e92-ba3a-926c8db8a16c" xlink:to="loc_country_IN_019bdb1d-0f25-795f-bdee-167f5691b108" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019bdb1d-0f25-7747-9d86-aa678b2c894c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignTaxJurisdictionOtherMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019bdb37-ecf1-7e92-ba3a-926c8db8a16c" xlink:to="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019bdb1d-0f25-7747-9d86-aa678b2c894c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019bdb1d-0f25-7542-9e86-c78424d3e3ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019bdb1d-0f25-738d-b152-60726bdbbf2f" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019bdb1d-0f25-7542-9e86-c78424d3e3ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019bdb1d-0f25-7542-9e86-c78424d3e3ad" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_019c3385-ac0e-709b-9c30-052d30a6ea61" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_019c3385-ac0e-709b-9c30-052d30a6ea61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCreditsResearch_019c3385-ac0e-7b9d-bf7d-d95bec8cee92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationTaxCreditsResearch"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCreditsResearch_019c3385-ac0e-7b9d-bf7d-d95bec8cee92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_019c3385-ac0e-7d8b-b506-eef41e887d88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_019c3385-ac0e-7d8b-b506-eef41e887d88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationAmount_019c3385-ac0e-7785-89c2-1bd90f65eb8d" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationAmount"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationAmount_019c3385-ac0e-7785-89c2-1bd90f65eb8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsAmount_019c3385-ac0e-753f-8ead-325724bd8f1d" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsAmount"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsAmount_019c3385-ac0e-753f-8ead-325724bd8f1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStateTaxesDeductionAmount_019c3385-ac0e-754a-aa2b-a77dd6967c37" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStateTaxesDeductionAmount"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStateTaxesDeductionAmount_019c3385-ac0e-754a-aa2b-a77dd6967c37" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_019c3385-ac0e-7965-b0a9-b33d688e3f9f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_019c3385-ac0e-7965-b0a9-b33d688e3f9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderBaseErosionAntiAbuseTaxAmount_019c3385-ac0e-7b1c-a0ed-57a650ace913" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationCrossBorderBaseErosionAntiAbuseTaxAmount"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderBaseErosionAntiAbuseTaxAmount_019c3385-ac0e-7b1c-a0ed-57a650ace913" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNetControlledForeignCorporationsTestedIncomeExclusionAmount_019c3385-ac0e-7191-b5fa-5407f2cf9d17" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNetControlledForeignCorporationsTestedIncomeExclusionAmount"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNetControlledForeignCorporationsTestedIncomeExclusionAmount_019c3385-ac0e-7191-b5fa-5407f2cf9d17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderUSBranchTaxImpactAmount_019c3385-ac0e-78cf-8cdb-1bd4419dde20" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationCrossBorderUSBranchTaxImpactAmount"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderUSBranchTaxImpactAmount_019c3385-ac0e-78cf-8cdb-1bd4419dde20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationTaxBenefitOfAcquisitionOrReorganizationsAmount_019c3385-ac0e-71fb-83ee-cc01d47e2b40" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationTaxBenefitOfAcquisitionOrReorganizationsAmount"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationTaxBenefitOfAcquisitionOrReorganizationsAmount_019c3385-ac0e-71fb-83ee-cc01d47e2b40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNetOperatingLossCarryforwardAdjustmentAmount_019c3385-ac0e-7a1f-a9af-35fa3fb2325c" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNetOperatingLossCarryforwardAdjustmentAmount"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNetOperatingLossCarryforwardAdjustmentAmount_019c3385-ac0e-7a1f-a9af-35fa3fb2325c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationFixedAssetsDeferredAdjustmentsAmount_019c3385-ac0e-795d-9035-80a3cd233f60" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationFixedAssetsDeferredAdjustmentsAmount"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationFixedAssetsDeferredAdjustmentsAmount_019c3385-ac0e-795d-9035-80a3cd233f60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderMiscellaneousDeferredAdjustmentsAmount_019c3385-ac0e-7a12-a2b9-cc495c1170f6" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationCrossBorderMiscellaneousDeferredAdjustmentsAmount"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderMiscellaneousDeferredAdjustmentsAmount_019c3385-ac0e-7a12-a2b9-cc495c1170f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentsAmount_019c3385-ac0e-7f3b-a232-62fc3b6b5507" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentsAmount"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentsAmount_019c3385-ac0e-7f3b-a232-62fc3b6b5507" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c3385-ac0e-7e05-9038-4ec09ecc9c1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c3385-ac0e-7e05-9038-4ec09ecc9c1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_019c3385-ac0e-7618-b8fe-b752fcc7c923" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_019c3385-ac0e-7618-b8fe-b752fcc7c923" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_019c3385-ac0e-756c-90dd-da0e9652b9f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_019c3385-ac0e-756c-90dd-da0e9652b9f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationWriteOffOfIncomeTaxReceivablesAmount_019c3385-ac0e-7d57-8f92-8e69fc54a19a" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationWriteOffOfIncomeTaxReceivablesAmount"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationWriteOffOfIncomeTaxReceivablesAmount_019c3385-ac0e-7d57-8f92-8e69fc54a19a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxesAmount_019c3385-ac0e-7da8-8fa1-e8f534d36d30" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxesAmount"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxesAmount_019c3385-ac0e-7da8-8fa1-e8f534d36d30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxContingencies_019c3385-ac0e-7938-8916-bf397182a6f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationTaxContingencies"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxContingencies_019c3385-ac0e-7938-8916-bf397182a6f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c3385-ac0e-7382-98e0-8fc3c7b49062" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019bdb32-2831-7dc9-813a-3c4bf9b5fdde" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c3385-ac0e-7382-98e0-8fc3c7b49062" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019bdb1d-0f25-7542-9e86-c78424d3e3ad" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c3386-b14c-7679-9c12-b7fb5136243c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c3386-b14c-7679-9c12-b7fb5136243c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_019c3386-b14c-7ac0-8232-6fa80bd6d793" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_019c3386-b14c-7ac0-8232-6fa80bd6d793" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_019c3386-b14c-749b-966f-bf9bd48988f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_019c3386-b14c-749b-966f-bf9bd48988f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent_019c3386-b14c-7474-bcbe-92da390fa7e0" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent_019c3386-b14c-7474-bcbe-92da390fa7e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsPercent_019c3386-b14c-7474-a283-fe5d963d8092" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsPercent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsPercent_019c3386-b14c-7474-a283-fe5d963d8092" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStateTaxesDeductionPercent_019c3386-b14c-7368-84ce-8f6f96f7d2db" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStateTaxesDeductionPercent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseStateTaxesDeductionPercent_019c3386-b14c-7368-84ce-8f6f96f7d2db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_019c3386-b14c-738d-9a36-900d59908c02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_019c3386-b14c-738d-9a36-900d59908c02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderBaseErosionAntiAbuseTaxPercent_019c3386-b14c-7347-a3da-6c7aa3518fee" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationCrossBorderBaseErosionAntiAbuseTaxPercent"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderBaseErosionAntiAbuseTaxPercent_019c3386-b14c-7347-a3da-6c7aa3518fee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNetControlledForeignCorporationsTestedIncomeExclusionPercent_019c3386-b14c-7455-bf45-01dced05b311" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNetControlledForeignCorporationsTestedIncomeExclusionPercent"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNetControlledForeignCorporationsTestedIncomeExclusionPercent_019c3386-b14c-7455-bf45-01dced05b311" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderUSBranchTaxImpactPercent_019c3386-b14c-7852-9545-6f4ef03b4c7f" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationCrossBorderUSBranchTaxImpactPercent"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderUSBranchTaxImpactPercent_019c3386-b14c-7852-9545-6f4ef03b4c7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationTaxBenefitOfAcquisitionOrReorganizationsPercent_019c3386-b14c-71ab-af09-3d3c36fee35e" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationTaxBenefitOfAcquisitionOrReorganizationsPercent"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationTaxBenefitOfAcquisitionOrReorganizationsPercent_019c3386-b14c-71ab-af09-3d3c36fee35e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationNetOperatingLossCarryforwardAdjustmentPercent_019c3386-b14c-7fd8-9420-2b59187ebf7f" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationNetOperatingLossCarryforwardAdjustmentPercent"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationNetOperatingLossCarryforwardAdjustmentPercent_019c3386-b14c-7fd8-9420-2b59187ebf7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationFixedAssetsDeferredAdjustmentsPercent_019c3386-b14c-7c75-8e02-1a485f499128" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationFixedAssetsDeferredAdjustmentsPercent"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationFixedAssetsDeferredAdjustmentsPercent_019c3386-b14c-7c75-8e02-1a485f499128" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderMiscellaneousDeferredAdjustmentsPercent_019c3386-b14c-7c3d-b279-f93f53c83a23" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationCrossBorderMiscellaneousDeferredAdjustmentsPercent"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationCrossBorderMiscellaneousDeferredAdjustmentsPercent_019c3386-b14c-7c3d-b279-f93f53c83a23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentsPercent_019c3386-b14c-7e16-8d7a-54c5c6a0a0ab" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentsPercent"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentsPercent_019c3386-b14c-7e16-8d7a-54c5c6a0a0ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c3386-b14c-7dbc-9701-474228e895b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c3386-b14c-7dbc-9701-474228e895b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_019c3386-b14c-7029-b9bd-761f4fb1a4b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_019c3386-b14c-7029-b9bd-761f4fb1a4b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_019c3386-b14c-7ae3-958f-73604e16ca4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_019c3386-b14c-7ae3-958f-73604e16ca4d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationWriteOffOfIncomeTaxReceivablesPercent_019c3386-b14c-7dc9-9669-0901e77f6337" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationWriteOffOfIncomeTaxReceivablesPercent"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationWriteOffOfIncomeTaxReceivablesPercent_019c3386-b14c-7dc9-9669-0901e77f6337" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxesPercent_019c3386-b14c-7ad9-ad80-a757885d690c" xlink:href="fivn-20251231.xsd#fivn_EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxesPercent"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_fivn_EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxesPercent_019c3386-b14c-7ad9-ad80-a757885d690c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_019c3386-b14c-77d2-ae98-8e0e559a20f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_019c3386-b14c-77d2-ae98-8e0e559a20f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c3386-b14c-77cd-a659-c85ee9c01d92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019bdb1d-9f60-763b-a651-5305366e5a89" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c3386-b14c-77cd-a659-c85ee9c01d92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesScheduleofDisaggregatedbyMaterialJurisdictionDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesScheduleofDisaggregatedbyMaterialJurisdictionDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesScheduleofDisaggregatedbyMaterialJurisdictionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019c1ecb-a7c2-78f3-8359-1986e195d505" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExaminationTable_019c1ecb-a7c2-7614-aa78-e087d9d1d7a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExaminationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019c1ecb-a7c2-78f3-8359-1986e195d505" xlink:to="loc_us-gaap_IncomeTaxExaminationTable_019c1ecb-a7c2-7614-aa78-e087d9d1d7a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019c1ecb-a7c2-7bc5-8be6-b3dad88df595" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationTable_019c1ecb-a7c2-7614-aa78-e087d9d1d7a4" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019c1ecb-a7c2-7bc5-8be6-b3dad88df595" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c1ecb-a7c2-76e5-95ae-87800205dd8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c1ecb-a7c2-7bc5-8be6-b3dad88df595" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c1ecb-a7c2-76e5-95ae-87800205dd8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticCountryMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c1ecb-a7c2-76e5-95ae-87800205dd8b" xlink:to="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_IL_019c1ecb-a7c2-7d51-a7cc-fd79bdfd8c85" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_IL"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:to="loc_stpr_IL_019c1ecb-a7c2-7d51-a7cc-fd79bdfd8c85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_PA_019c1ecb-a7c2-70b9-aefa-045019fd3f76" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_PA"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:to="loc_stpr_PA_019c1ecb-a7c2-70b9-aefa-045019fd3f76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_TX_019c1ecb-a7c2-794a-96ee-261ce28f68ae" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_TX"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:to="loc_stpr_TX_019c1ecb-a7c2-794a-96ee-261ce28f68ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_NY_019c3388-70ac-7722-9cef-5829166365dd" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_NY"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:to="loc_stpr_NY_019c3388-70ac-7722-9cef-5829166365dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalTaxJurisdictionOtherMember_019c1ecb-a7c2-7b78-9abf-48c043448feb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StateAndLocalTaxJurisdictionOtherMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DomesticCountryMember_019c1ecc-26d3-72a6-aa15-55b742bf445d" xlink:to="loc_us-gaap_StateAndLocalTaxJurisdictionOtherMember_019c1ecb-a7c2-7b78-9abf-48c043448feb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_019c1ecc-79ed-72e6-87ca-88529d8b16cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c1ecb-a7c2-76e5-95ae-87800205dd8b" xlink:to="loc_us-gaap_ForeignCountryMember_019c1ecc-79ed-72e6-87ca-88529d8b16cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019c338f-42e9-7ec0-a951-1ee1c2755dc3" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019c1ecc-79ed-72e6-87ca-88529d8b16cf" xlink:to="loc_country_GB_019c338f-42e9-7ec0-a951-1ee1c2755dc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CA_019c1ecb-a7c2-7d2a-af7e-be2e91fbc98b" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019c1ecc-79ed-72e6-87ca-88529d8b16cf" xlink:to="loc_country_CA_019c1ecb-a7c2-7d2a-af7e-be2e91fbc98b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_PH_019c1ecb-a7c2-7397-af5c-75f718afac09" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PH"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019c1ecc-79ed-72e6-87ca-88529d8b16cf" xlink:to="loc_country_PH_019c1ecb-a7c2-7397-af5c-75f718afac09" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c1ecb-a7c2-785e-91db-9d90f4b471bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignTaxJurisdictionOtherMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ForeignCountryMember_019c1ecc-79ed-72e6-87ca-88529d8b16cf" xlink:to="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c1ecb-a7c2-785e-91db-9d90f4b471bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExaminationLineItems_019c1ecb-a7c2-7577-ae42-136ee887e756" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExaminationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationTable_019c1ecb-a7c2-7614-aa78-e087d9d1d7a4" xlink:to="loc_us-gaap_IncomeTaxExaminationLineItems_019c1ecb-a7c2-7577-ae42-136ee887e756" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c1ecb-a7c2-76bb-b4c3-916a24fa95ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidFederalAfterRefundReceived"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_019c1ecb-a7c2-7577-ae42-136ee887e756" xlink:to="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c1ecb-a7c2-76bb-b4c3-916a24fa95ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c1ecb-a7c2-7093-b0ec-aed1c17ea746" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_019c1ecb-a7c2-7577-ae42-136ee887e756" xlink:to="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c1ecb-a7c2-7093-b0ec-aed1c17ea746" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceived_019c1ecb-a7c2-7f35-97bf-ca45d44279b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidForeignAfterRefundReceived"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_019c1ecb-a7c2-7577-ae42-136ee887e756" xlink:to="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceived_019c1ecb-a7c2-7f35-97bf-ca45d44279b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_019c1ecb-a7c2-7681-ad93-f54852cf7a17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_019c1ecb-a7c2-7577-ae42-136ee887e756" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_019c1ecb-a7c2-7681-ad93-f54852cf7a17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_249d58c2-30ef-4977-9e7b-797eb6778dcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGrossAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_249d58c2-30ef-4977-9e7b-797eb6778dcc" xlink:to="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DeferredTaxAssetsOperatingLossandTaxCreditCarryforwardsTotal_96fe021b-49e4-4d7b-91a5-74529dd6a1d9" xlink:href="fivn-20251231.xsd#fivn_DeferredTaxAssetsOperatingLossandTaxCreditCarryforwardsTotal"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_fivn_DeferredTaxAssetsOperatingLossandTaxCreditCarryforwardsTotal_96fe021b-49e4-4d7b-91a5-74529dd6a1d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment_fa753556-afeb-41cc-bdb2-9a1d15f0976b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment_fa753556-afeb-41cc-bdb2-9a1d15f0976b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_c1990902-459a-4d7d-bd9c-90cdf0bacb33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_c1990902-459a-4d7d-bd9c-90cdf0bacb33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_f139e845-4f38-4a7a-8fee-51a4f9508b3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_f139e845-4f38-4a7a-8fee-51a4f9508b3a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_9e79988d-714f-46b8-b3e6-b47267f75d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_9e79988d-714f-46b8-b3e6-b47267f75d8e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_98ffdb85-7ac2-4ba6-8248-e815487178e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_98ffdb85-7ac2-4ba6-8248-e815487178e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_363a27b2-1766-41bb-8fe0-bc2d895b5f56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsDeferredIncome"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_363a27b2-1766-41bb-8fe0-bc2d895b5f56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits_4eac1c86-ee1e-4c5a-a1ce-8b78b31c8f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits_4eac1c86-ee1e-4c5a-a1ce-8b78b31c8f1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DeferredTaxAssetLeaseLiabilities_8b922041-7969-4859-a5c3-0a47cd291b42" xlink:href="fivn-20251231.xsd#fivn_DeferredTaxAssetLeaseLiabilities"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_fivn_DeferredTaxAssetLeaseLiabilities_8b922041-7969-4859-a5c3-0a47cd291b42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_b45bb11b-10ed-4942-968a-0f3bf6be2c56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_b45bb11b-10ed-4942-968a-0f3bf6be2c56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DeferredTaxAssetDeferredInterestExpense_7b03fe91-0ecc-4b28-84c9-a9c638d18cfb" xlink:href="fivn-20251231.xsd#fivn_DeferredTaxAssetDeferredInterestExpense"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_fivn_DeferredTaxAssetDeferredInterestExpense_7b03fe91-0ecc-4b28-84c9-a9c638d18cfb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_196c6130-2b7c-4148-bef3-330b85822cda" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_196c6130-2b7c-4148-bef3-330b85822cda" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_ac5ef4b4-d5f4-423c-ac02-eed143ba85dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_ac5ef4b4-d5f4-423c-ac02-eed143ba85dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_594770c0-eab2-4250-aa0f-80697c664d2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_594770c0-eab2-4250-aa0f-80697c664d2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_2ddcf353-08e7-433f-aa22-4f87bd3e73da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsGrossAbstract_d12e46c5-d5b1-4c91-9e4e-b1a2fb842dcd" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_2ddcf353-08e7-433f-aa22-4f87bd3e73da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_249d58c2-30ef-4977-9e7b-797eb6778dcc" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_be5d484f-1abb-49a2-886d-45240bc3d3cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_be5d484f-1abb-49a2-886d-45240bc3d3cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_41d761fa-4b2b-4c87-902a-9723cba564f4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_41d761fa-4b2b-4c87-902a-9723cba564f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DeferredTaxLiabilitiesRightOfUseAssets_e3c6ad01-1a9d-47a8-b1a7-5619eeab15a3" xlink:href="fivn-20251231.xsd#fivn_DeferredTaxLiabilitiesRightOfUseAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:to="loc_fivn_DeferredTaxLiabilitiesRightOfUseAssets_e3c6ad01-1a9d-47a8-b1a7-5619eeab15a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DeferredTaxLiabilitiesDeferredCompensation_f5fec082-9d88-4453-972f-cfe56a0d676b" xlink:href="fivn-20251231.xsd#fivn_DeferredTaxLiabilitiesDeferredCompensation"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:to="loc_fivn_DeferredTaxLiabilitiesDeferredCompensation_f5fec082-9d88-4453-972f-cfe56a0d676b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_6cd7d642-46e9-4e21-b843-cb08d18b079b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesOther"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_6cd7d642-46e9-4e21-b843-cb08d18b079b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_bcdf7a26-77c4-4de2-a2b2-7cebf7d5682c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_36ca7968-fff0-4286-8972-639670a936e6" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_bcdf7a26-77c4-4de2-a2b2-7cebf7d5682c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_0d4b2ac0-8950-49b7-adb3-f61ef1efb5ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_249d58c2-30ef-4977-9e7b-797eb6778dcc" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_0d4b2ac0-8950-49b7-adb3-f61ef1efb5ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_b1d3383a-b5ad-4cce-904f-4cbc9226f10c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_bac711f5-7be1-4054-98cb-6fd68aee7b80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwardsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_b1d3383a-b5ad-4cce-904f-4cbc9226f10c" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_bac711f5-7be1-4054-98cb-6fd68aee7b80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_bad78498-0e5d-494c-b87d-a604b670567e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_bac711f5-7be1-4054-98cb-6fd68aee7b80" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_bad78498-0e5d-494c-b87d-a604b670567e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_b937b98b-cb24-486c-b905-83bc8d9c7629" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_bad78498-0e5d-494c-b87d-a604b670567e" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_b937b98b-cb24-486c-b905-83bc8d9c7629" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_6317140e-c97b-46d3-a787-7eb822c6a413" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticCountryMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_b937b98b-cb24-486c-b905-83bc8d9c7629" xlink:to="loc_us-gaap_DomesticCountryMember_6317140e-c97b-46d3-a787-7eb822c6a413" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_455b7b31-7886-43be-8df7-bb3509da57d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StateAndLocalJurisdictionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_b937b98b-cb24-486c-b905-83bc8d9c7629" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_455b7b31-7886-43be-8df7-bb3509da57d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_79e17034-9a1a-4cf6-ae4b-f2abab1a4b61" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_b937b98b-cb24-486c-b905-83bc8d9c7629" xlink:to="loc_us-gaap_ForeignCountryMember_79e17034-9a1a-4cf6-ae4b-f2abab1a4b61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_d583ee1e-9b86-44e2-8066-1fe73ed1aed9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_bac711f5-7be1-4054-98cb-6fd68aee7b80" xlink:to="loc_us-gaap_TaxCreditCarryforwardAxis_d583ee1e-9b86-44e2-8066-1fe73ed1aed9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_7f966e7e-a294-4bd9-948d-9a36a933bf6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_d583ee1e-9b86-44e2-8066-1fe73ed1aed9" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_7f966e7e-a294-4bd9-948d-9a36a933bf6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchMember_7fa420ee-6644-4302-842c-291d6147d82e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_7f966e7e-a294-4bd9-948d-9a36a933bf6c" xlink:to="loc_us-gaap_ResearchMember_7fa420ee-6644-4302-842c-291d6147d82e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameAxis_d092e247-4528-42e9-b0f5-0698237ca465" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_bac711f5-7be1-4054-98cb-6fd68aee7b80" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameAxis_d092e247-4528-42e9-b0f5-0698237ca465" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_8aa8f2b8-6b45-4b75-8b2b-88b7e1da2520" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_d092e247-4528-42e9-b0f5-0698237ca465" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameDomain_8aa8f2b8-6b45-4b75-8b2b-88b7e1da2520" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AustralianTaxationOfficeAndPortugalTaxationOfficeMember_add06ace-b8bf-43f6-99fa-a095ba2bd3a3" xlink:href="fivn-20251231.xsd#fivn_AustralianTaxationOfficeAndPortugalTaxationOfficeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameDomain_8aa8f2b8-6b45-4b75-8b2b-88b7e1da2520" xlink:to="loc_fivn_AustralianTaxationOfficeAndPortugalTaxationOfficeMember_add06ace-b8bf-43f6-99fa-a095ba2bd3a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwardsLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_bac711f5-7be1-4054-98cb-6fd68aee7b80" xlink:to="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_adee0dc0-1c2c-4565-a6e9-94fc7d52569e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_adee0dc0-1c2c-4565-a6e9-94fc7d52569e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_73a1d607-f716-4e90-aab2-6a9b2850d8bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_73a1d607-f716-4e90-aab2-6a9b2850d8bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwards_2ee55138-583f-41ec-86e9-dd0ceec514c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwards"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_us-gaap_OperatingLossCarryforwards_2ee55138-583f-41ec-86e9-dd0ceec514c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_fd8d3c6d-39bf-4fc0-a049-342fbb78b9e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardAmount"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_fd8d3c6d-39bf-4fc0-a049-342fbb78b9e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_OperatingLossCarryforwardLimitationsonUseChangeinOwnership_a56dfefc-3dfc-4a0f-aad0-78b840edef15" xlink:href="fivn-20251231.xsd#fivn_OperatingLossCarryforwardLimitationsonUseChangeinOwnership"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_fivn_OperatingLossCarryforwardLimitationsonUseChangeinOwnership_a56dfefc-3dfc-4a0f-aad0-78b840edef15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_OperatingLossCarryforwardLimitationsonUseChangeinOwnershipPeriod_33371a92-8181-4f9c-806e-46be228c5401" xlink:href="fivn-20251231.xsd#fivn_OperatingLossCarryforwardLimitationsonUseChangeinOwnershipPeriod"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_fivn_OperatingLossCarryforwardLimitationsonUseChangeinOwnershipPeriod_33371a92-8181-4f9c-806e-46be228c5401" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_9790c7af-8e9b-4b97-97f5-13e4f4c0ccc6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9d999118-c563-44c6-8895-490dd5f4e062" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_9790c7af-8e9b-4b97-97f5-13e4f4c0ccc6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/IncomeTaxesScheduleofUnrecognizedTaxBenefitsRollforwardDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#IncomeTaxesScheduleofUnrecognizedTaxBenefitsRollforwardDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/IncomeTaxesScheduleofUnrecognizedTaxBenefitsRollforwardDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_e573ea13-62aa-44eb-891d-9fd732dadc81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_e573ea13-62aa-44eb-891d-9fd732dadc81" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_c13362c8-54c8-44a2-9eb5-d0a95f16e379" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefits"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_c13362c8-54c8-44a2-9eb5-d0a95f16e379" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_8b2640ea-0478-46dc-b0a0-450fd45427a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_8b2640ea-0478-46dc-b0a0-450fd45427a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_b9f77176-a2a1-4fb5-818a-1d9847db1f9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_b9f77176-a2a1-4fb5-818a-1d9847db1f9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_f410a528-68f8-4219-90ae-4b46e3e90098" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_f410a528-68f8-4219-90ae-4b46e3e90098" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_b6d9cd0d-61b7-4c2d-a721-6dae05b7134a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_b6d9cd0d-61b7-4c2d-a721-6dae05b7134a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_bd17c4f6-283f-4600-a29c-2103f58b6c63" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefits"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_9b181097-eb56-47f0-83e5-02cdcbe36934" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_bd17c4f6-283f-4600-a29c-2103f58b6c63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CommitmentsandContingenciesCommitmentsDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#CommitmentsandContingenciesCommitmentsDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CommitmentsandContingenciesCommitmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_7d64ca77-9ceb-4e47-b7dc-cd6f3986f6cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_83ef7471-dcc2-4f65-81b1-fa5fad9fbfce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_7d64ca77-9ceb-4e47-b7dc-cd6f3986f6cf" xlink:to="loc_us-gaap_OtherCommitmentsTable_83ef7471-dcc2-4f65-81b1-fa5fad9fbfce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_9d120564-d8e6-45fd-a5b9-c0a1a634c2c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_83ef7471-dcc2-4f65-81b1-fa5fad9fbfce" xlink:to="loc_us-gaap_DebtInstrumentAxis_9d120564-d8e6-45fd-a5b9-c0a1a634c2c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e0ddd340-513b-4085-95f2-c6a2fb56fffe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_9d120564-d8e6-45fd-a5b9-c0a1a634c2c1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e0ddd340-513b-4085-95f2-c6a2fb56fffe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ConvertibleSeniorNotesDue2029Member_f28f7784-8ede-4447-8526-eb081a4c01d0" xlink:href="fivn-20251231.xsd#fivn_ConvertibleSeniorNotesDue2029Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e0ddd340-513b-4085-95f2-c6a2fb56fffe" xlink:to="loc_fivn_ConvertibleSeniorNotesDue2029Member_f28f7784-8ede-4447-8526-eb081a4c01d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9849777f-79f2-4f93-b1fe-19b5f1192547" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_83ef7471-dcc2-4f65-81b1-fa5fad9fbfce" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9849777f-79f2-4f93-b1fe-19b5f1192547" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_75b4816b-b380-4f31-9d1e-3b3d422e6254" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9849777f-79f2-4f93-b1fe-19b5f1192547" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_75b4816b-b380-4f31-9d1e-3b3d422e6254" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_ebe74d6d-e5ab-4661-8a95-449b0ea9230f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_75b4816b-b380-4f31-9d1e-3b3d422e6254" xlink:to="loc_us-gaap_ConvertibleDebtMember_ebe74d6d-e5ab-4661-8a95-449b0ea9230f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsAxis_c7000240-6286-44c3-8f7c-f140d33a674a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCommitmentsAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_83ef7471-dcc2-4f65-81b1-fa5fad9fbfce" xlink:to="loc_us-gaap_OtherCommitmentsAxis_c7000240-6286-44c3-8f7c-f140d33a674a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsDomain_904096e5-d4f6-492f-97ab-5b944ebb90b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCommitmentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsAxis_c7000240-6286-44c3-8f7c-f140d33a674a" xlink:to="loc_us-gaap_OtherCommitmentsDomain_904096e5-d4f6-492f-97ab-5b944ebb90b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_PurchaseCommitmentCloudServicesAndSoftwareAndMaintenanceAgreementMember_6a092e58-6b78-400d-bc4c-0a966e0fd84d" xlink:href="fivn-20251231.xsd#fivn_PurchaseCommitmentCloudServicesAndSoftwareAndMaintenanceAgreementMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsDomain_904096e5-d4f6-492f-97ab-5b944ebb90b7" xlink:to="loc_fivn_PurchaseCommitmentCloudServicesAndSoftwareAndMaintenanceAgreementMember_6a092e58-6b78-400d-bc4c-0a966e0fd84d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_83ef7471-dcc2-4f65-81b1-fa5fad9fbfce" xlink:to="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_d90ac17f-7e46-43d8-92f3-43ae11ce2cf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_d90ac17f-7e46-43d8-92f3-43ae11ce2cf2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1247762f-6106-4df5-9e1b-959c748e63a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1247762f-6106-4df5-9e1b-959c748e63a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_9b95bbf5-49d0-4867-8664-c78ebadd02af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_9b95bbf5-49d0-4867-8664-c78ebadd02af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommercialCommitmentsExpiring_50dab5a7-0026-49bb-b83a-5cbfc568ff88" xlink:href="fivn-20251231.xsd#fivn_CommercialCommitmentsExpiring"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_fivn_CommercialCommitmentsExpiring_50dab5a7-0026-49bb-b83a-5cbfc568ff88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommercialCommitmentToBePaidYearOne_c10d1ec7-011d-4457-a23e-5d79ccdef4a7" xlink:href="fivn-20251231.xsd#fivn_CommercialCommitmentToBePaidYearOne"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_fivn_CommercialCommitmentToBePaidYearOne_c10d1ec7-011d-4457-a23e-5d79ccdef4a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommercialCommitmentToBePaidYearTwo_a6cdba89-9f9f-43b6-9862-1bea44ffc4f3" xlink:href="fivn-20251231.xsd#fivn_CommercialCommitmentToBePaidYearTwo"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_fivn_CommercialCommitmentToBePaidYearTwo_a6cdba89-9f9f-43b6-9862-1bea44ffc4f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommercialCommitmentToBePaidYearThree_019c3394-0a2a-732f-9439-836765335ddf" xlink:href="fivn-20251231.xsd#fivn_CommercialCommitmentToBePaidYearThree"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_fivn_CommercialCommitmentToBePaidYearThree_019c3394-0a2a-732f-9439-836765335ddf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommercialCommitmentToBePaidYearFour_019c4bed-abbb-71cf-8f0c-508001b8f2f8" xlink:href="fivn-20251231.xsd#fivn_CommercialCommitmentToBePaidYearFour"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_fivn_CommercialCommitmentToBePaidYearFour_019c4bed-abbb-71cf-8f0c-508001b8f2f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CommitmentAndContingenciesCommercialCommitmentReduction_019c3395-fcb2-7ef3-b2bd-ce17bd78fce0" xlink:href="fivn-20251231.xsd#fivn_CommitmentAndContingenciesCommercialCommitmentReduction"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_62cd0c50-f70f-41a5-8861-d215d0a35933" xlink:to="loc_fivn_CommitmentAndContingenciesCommercialCommitmentReduction_019c3395-fcb2-7ef3-b2bd-ce17bd78fce0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CommitmentsandContingenciesScheduleofFutureMinimumLeasePaymentsforHostingTelecommunicationUsageServicesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#CommitmentsandContingenciesScheduleofFutureMinimumLeasePaymentsforHostingTelecommunicationUsageServicesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CommitmentsandContingenciesScheduleofFutureMinimumLeasePaymentsforHostingTelecommunicationUsageServicesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_14d3c7fc-8efd-4961-b449-5b7aeb28c571" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_0e4c6c32-4ce4-44f1-b452-b6ca6e87a54f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_14d3c7fc-8efd-4961-b449-5b7aeb28c571" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_0e4c6c32-4ce4-44f1-b452-b6ca6e87a54f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_4d88ec4d-0e38-4865-9ae7-8ef65107790a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_0e4c6c32-4ce4-44f1-b452-b6ca6e87a54f" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_4d88ec4d-0e38-4865-9ae7-8ef65107790a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_63924e8c-4975-4b45-b01e-4697f24815db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_4d88ec4d-0e38-4865-9ae7-8ef65107790a" xlink:to="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_63924e8c-4975-4b45-b01e-4697f24815db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_TelecommunicationUsageServicesMember_cd0d8607-0160-4199-926f-96cdabbfa043" xlink:href="fivn-20251231.xsd#fivn_TelecommunicationUsageServicesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_63924e8c-4975-4b45-b01e-4697f24815db" xlink:to="loc_fivn_TelecommunicationUsageServicesMember_cd0d8607-0160-4199-926f-96cdabbfa043" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_4693209f-00ad-42d4-9da8-e10609d8dc4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationTable_0e4c6c32-4ce4-44f1-b452-b6ca6e87a54f" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_4693209f-00ad-42d4-9da8-e10609d8dc4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationFiscalYearMaturityAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems_4693209f-00ad-42d4-9da8-e10609d8dc4c" xlink:to="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_aa644a0f-0632-4ea5-86de-f3163a8b3531" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationDueInNextTwelveMonths"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_aa644a0f-0632-4ea5-86de-f3163a8b3531" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_9ab4ee46-82d3-491c-9003-4e21f6de3955" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationDueInSecondYear"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligationDueInSecondYear_9ab4ee46-82d3-491c-9003-4e21f6de3955" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_3fa433b8-8305-47e6-a0ea-c818e037b85c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationDueInThirdYear"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligationDueInThirdYear_3fa433b8-8305-47e6-a0ea-c818e037b85c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFourthYear_7b935e94-78c8-4ebc-81c0-4ca57e23f50d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationDueInFourthYear"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligationDueInFourthYear_7b935e94-78c8-4ebc-81c0-4ca57e23f50d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFifthYear_b7c88178-565b-413f-b057-f4d2155044dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationDueInFifthYear"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligationDueInFifthYear_b7c88178-565b-413f-b057-f4d2155044dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueAfterFifthYear_3b958297-7e38-446c-a2f7-5a4d8e9fc2e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligationDueAfterFifthYear"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligationDueAfterFifthYear_3b958297-7e38-446c-a2f7-5a4d8e9fc2e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_6c47b6dd-abda-4e12-b8e7-c4fb9ceab6ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PurchaseObligation"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PurchaseObligationFiscalYearMaturityAbstract_019c66f8-c5a9-7920-82a1-1334d52ec25b" xlink:to="loc_us-gaap_PurchaseObligation_6c47b6dd-abda-4e12-b8e7-c4fb9ceab6ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CommitmentsandContingenciesUniversalServicesFundLiabilityDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#CommitmentsandContingenciesUniversalServicesFundLiabilityDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CommitmentsandContingenciesUniversalServicesFundLiabilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_02d4b2fb-c6b1-4ca8-a0cb-f109979f048c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_f74a990e-16ea-40d5-b3da-c04758238f3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_02d4b2fb-c6b1-4ca8-a0cb-f109979f048c" xlink:to="loc_us-gaap_LossContingenciesTable_f74a990e-16ea-40d5-b3da-c04758238f3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContingentConsiderationByTypeAxis_de508f3c-75f7-45aa-8923-910a9584c4a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContingentConsiderationByTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_f74a990e-16ea-40d5-b3da-c04758238f3b" xlink:to="loc_us-gaap_ContingentConsiderationByTypeAxis_de508f3c-75f7-45aa-8923-910a9584c4a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContingentConsiderationTypeDomain_aa7ee680-9c75-4dbb-9835-5ae906015b9a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContingentConsiderationTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContingentConsiderationByTypeAxis_de508f3c-75f7-45aa-8923-910a9584c4a7" xlink:to="loc_us-gaap_ContingentConsiderationTypeDomain_aa7ee680-9c75-4dbb-9835-5ae906015b9a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DisputedportionMember_e9158082-785a-48d7-95c9-e186d6644c8b" xlink:href="fivn-20251231.xsd#fivn_DisputedportionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContingentConsiderationTypeDomain_aa7ee680-9c75-4dbb-9835-5ae906015b9a" xlink:to="loc_fivn_DisputedportionMember_e9158082-785a-48d7-95c9-e186d6644c8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AccrualPeriodAxis_2d147dc2-4d30-462f-a557-46cf8c3dca6a" xlink:href="fivn-20251231.xsd#fivn_AccrualPeriodAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_f74a990e-16ea-40d5-b3da-c04758238f3b" xlink:to="loc_fivn_AccrualPeriodAxis_2d147dc2-4d30-462f-a557-46cf8c3dca6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AccrualPeriodDomain_5de895bd-6f6b-4228-8978-de866a4ecc11" xlink:href="fivn-20251231.xsd#fivn_AccrualPeriodDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_AccrualPeriodAxis_2d147dc2-4d30-462f-a557-46cf8c3dca6a" xlink:to="loc_fivn_AccrualPeriodDomain_5de895bd-6f6b-4228-8978-de866a4ecc11" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_Year2003ToYear2007Member_d12c3d5b-37f6-4527-8583-9518c8662f8b" xlink:href="fivn-20251231.xsd#fivn_Year2003ToYear2007Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_AccrualPeriodDomain_5de895bd-6f6b-4228-8978-de866a4ecc11" xlink:to="loc_fivn_Year2003ToYear2007Member_d12c3d5b-37f6-4527-8583-9518c8662f8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_05f3b450-ae73-4a7f-81e9-54ad4c005b02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_f74a990e-16ea-40d5-b3da-c04758238f3b" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_05f3b450-ae73-4a7f-81e9-54ad4c005b02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_70280652-8c42-4bb3-935a-bd13b88d7354" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_05f3b450-ae73-4a7f-81e9-54ad4c005b02" xlink:to="loc_us-gaap_LossContingencyNatureDomain_70280652-8c42-4bb3-935a-bd13b88d7354" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_USFobligationsMember_8c65ac2e-05ee-478b-850e-bc739bb9c4cb" xlink:href="fivn-20251231.xsd#fivn_USFobligationsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyNatureDomain_70280652-8c42-4bb3-935a-bd13b88d7354" xlink:to="loc_fivn_USFobligationsMember_8c65ac2e-05ee-478b-850e-bc739bb9c4cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_f7885e05-5898-4e82-9a7f-d66d5fcdb389" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_f74a990e-16ea-40d5-b3da-c04758238f3b" xlink:to="loc_us-gaap_LossContingenciesLineItems_f7885e05-5898-4e82-9a7f-d66d5fcdb389" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DisputedLiabilityRelatedToReversalOfInterestAndPenalties_ec17f2a7-3ed6-431d-8af2-bd97f1135e17" xlink:href="fivn-20251231.xsd#fivn_DisputedLiabilityRelatedToReversalOfInterestAndPenalties"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_f7885e05-5898-4e82-9a7f-d66d5fcdb389" xlink:to="loc_fivn_DisputedLiabilityRelatedToReversalOfInterestAndPenalties_ec17f2a7-3ed6-431d-8af2-bd97f1135e17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/CommitmentsandContingenciesStateandLocalTaxesandSurchargesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#CommitmentsandContingenciesStateandLocalTaxesandSurchargesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/CommitmentsandContingenciesStateandLocalTaxesandSurchargesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_19ecd7f2-051f-4c67-aced-efb5ab52b2a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_f0cc1d3c-a01f-4984-95ff-ac06ba2bc10e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_19ecd7f2-051f-4c67-aced-efb5ab52b2a1" xlink:to="loc_us-gaap_LossContingenciesTable_f0cc1d3c-a01f-4984-95ff-ac06ba2bc10e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_7d687667-bd7f-4c54-851c-f4785c502936" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_f0cc1d3c-a01f-4984-95ff-ac06ba2bc10e" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_7d687667-bd7f-4c54-851c-f4785c502936" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_4bf08b28-c5b5-4e58-8368-fbaaa6ae8aa0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_7d687667-bd7f-4c54-851c-f4785c502936" xlink:to="loc_us-gaap_LossContingencyNatureDomain_4bf08b28-c5b5-4e58-8368-fbaaa6ae8aa0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ContingentsalestaxliabilitiesMember_555335b4-5e98-491d-8603-d2eb63a561f1" xlink:href="fivn-20251231.xsd#fivn_ContingentsalestaxliabilitiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyNatureDomain_4bf08b28-c5b5-4e58-8368-fbaaa6ae8aa0" xlink:to="loc_fivn_ContingentsalestaxliabilitiesMember_555335b4-5e98-491d-8603-d2eb63a561f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_6532df5d-cd5a-41a2-85fb-0567e5014e23" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_f0cc1d3c-a01f-4984-95ff-ac06ba2bc10e" xlink:to="loc_us-gaap_LossContingenciesLineItems_6532df5d-cd5a-41a2-85fb-0567e5014e23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesAndExciseTaxPayableCurrentAndNoncurrent_c8471aac-7bde-47ad-89c9-f327a5d3dad6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesAndExciseTaxPayableCurrentAndNoncurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_6532df5d-cd5a-41a2-85fb-0567e5014e23" xlink:to="loc_us-gaap_SalesAndExciseTaxPayableCurrentAndNoncurrent_c8471aac-7bde-47ad-89c9-f327a5d3dad6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesAndExciseTaxPayableCurrent_57059943-3690-4806-8353-5ad1bf1b5ac2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesAndExciseTaxPayableCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_6532df5d-cd5a-41a2-85fb-0567e5014e23" xlink:to="loc_us-gaap_SalesAndExciseTaxPayableCurrent_57059943-3690-4806-8353-5ad1bf1b5ac2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SegmentandGeographicalInformationNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#SegmentandGeographicalInformationNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SegmentandGeographicalInformationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_019c59ac-090c-76a9-b72d-8b0970e5e82c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_019c59ac-090c-775e-bc6d-fef90230a03c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_019c59ac-090c-76a9-b72d-8b0970e5e82c" xlink:to="loc_us-gaap_NumberOfOperatingSegments_019c59ac-090c-775e-bc6d-fef90230a03c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019c59ac-090c-7daa-9175-1fd77af56ca5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_019c59ac-090c-76a9-b72d-8b0970e5e82c" xlink:to="loc_us-gaap_NumberOfReportableSegments_019c59ac-090c-7daa-9175-1fd77af56ca5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SegmentandGeographicalInformationScheduleofRevenueandPropertyandEquipmentbyGeographicRegionDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#SegmentandGeographicalInformationScheduleofRevenueandPropertyandEquipmentbyGeographicRegionDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SegmentandGeographicalInformationScheduleofRevenueandPropertyandEquipmentbyGeographicRegionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_688ca000-4e33-4bbf-bff0-cbbefe0488b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_a0828fc0-3ecd-42fc-a788-ba8df669f56c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_688ca000-4e33-4bbf-bff0-cbbefe0488b0" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_a0828fc0-3ecd-42fc-a788-ba8df669f56c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_1294c844-0979-42b1-b982-3f37b56e345a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_a0828fc0-3ecd-42fc-a788-ba8df669f56c" xlink:to="loc_srt_StatementGeographicalAxis_1294c844-0979-42b1-b982-3f37b56e345a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_9032aa45-56b9-4e75-84e3-58f2484eb488" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_1294c844-0979-42b1-b982-3f37b56e345a" xlink:to="loc_srt_SegmentGeographicalDomain_9032aa45-56b9-4e75-84e3-58f2484eb488" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_df30783b-34a3-4167-829e-51c4453697cc" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_9032aa45-56b9-4e75-84e3-58f2484eb488" xlink:to="loc_country_US_df30783b-34a3-4167-829e-51c4453697cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_a3b84b7e-2c6e-4fa3-b5c5-664ac2cfd90a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonUsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_9032aa45-56b9-4e75-84e3-58f2484eb488" xlink:to="loc_us-gaap_NonUsMember_a3b84b7e-2c6e-4fa3-b5c5-664ac2cfd90a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_885875b8-4577-4808-9d2d-d46636b09ab9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_a0828fc0-3ecd-42fc-a788-ba8df669f56c" xlink:to="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_885875b8-4577-4808-9d2d-d46636b09ab9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_29f1637e-075c-40f9-bcb9-33f39abd120f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_885875b8-4577-4808-9d2d-d46636b09ab9" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_29f1637e-075c-40f9-bcb9-33f39abd120f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_05cafb54-90ac-46a3-b529-e568873bfa99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_885875b8-4577-4808-9d2d-d46636b09ab9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_05cafb54-90ac-46a3-b529-e568873bfa99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SegmentandGeographicalInformationReconciliationofRevenuefromSegmentstoConsolidatedDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#SegmentandGeographicalInformationReconciliationofRevenuefromSegmentstoConsolidatedDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SegmentandGeographicalInformationReconciliationofRevenuefromSegmentstoConsolidatedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_51abd8da-458f-4d34-af9d-c4e9322bbee3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_19f4dabb-d4e4-47b6-892e-75cd18bf6688" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_51abd8da-458f-4d34-af9d-c4e9322bbee3" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_19f4dabb-d4e4-47b6-892e-75cd18bf6688" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_98442270-93b1-4c26-9b00-c5959ceb790e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_19f4dabb-d4e4-47b6-892e-75cd18bf6688" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_98442270-93b1-4c26-9b00-c5959ceb790e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_3ab5a297-2027-43ba-8bf0-0611c103ddaf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_98442270-93b1-4c26-9b00-c5959ceb790e" xlink:to="loc_us-gaap_SegmentDomain_3ab5a297-2027-43ba-8bf0-0611c103ddaf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ReportableSegmentMember_49062754-478e-49be-a157-f2b45ac6abe2" xlink:href="fivn-20251231.xsd#fivn_ReportableSegmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_3ab5a297-2027-43ba-8bf0-0611c103ddaf" xlink:to="loc_fivn_ReportableSegmentMember_49062754-478e-49be-a157-f2b45ac6abe2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_19f4dabb-d4e4-47b6-892e-75cd18bf6688" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_b457dea6-51dc-44b6-bda0-55b408ebe034" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_b457dea6-51dc-44b6-bda0-55b408ebe034" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_CostOfRevenueAdjusted_e672545b-d4e9-4e24-be89-8d35ed19c6d8" xlink:href="fivn-20251231.xsd#fivn_CostOfRevenueAdjusted"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_fivn_CostOfRevenueAdjusted_e672545b-d4e9-4e24-be89-8d35ed19c6d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_ResearchAndDevelopmentExpenseAdjusted_b737e8ce-3872-49b9-b0ff-7e5f4961053d" xlink:href="fivn-20251231.xsd#fivn_ResearchAndDevelopmentExpenseAdjusted"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_fivn_ResearchAndDevelopmentExpenseAdjusted_b737e8ce-3872-49b9-b0ff-7e5f4961053d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AdjustedSalesAndMarketingExpense_8f200e22-eabb-4cb6-8df3-18d08bce2041" xlink:href="fivn-20251231.xsd#fivn_AdjustedSalesAndMarketingExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_fivn_AdjustedSalesAndMarketingExpense_8f200e22-eabb-4cb6-8df3-18d08bce2041" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_GeneralAndAdministrativeExpenseAdjusted_bca5bdb5-5adb-49b1-ac77-0e3e51a7cf1b" xlink:href="fivn-20251231.xsd#fivn_GeneralAndAdministrativeExpenseAdjusted"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_fivn_GeneralAndAdministrativeExpenseAdjusted_bca5bdb5-5adb-49b1-ac77-0e3e51a7cf1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_fe11b878-1f83-4fa6-aefc-c7c018cdd4c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_fe11b878-1f83-4fa6-aefc-c7c018cdd4c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_4ba9ea0f-205c-495f-956c-1937876426bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_4ba9ea0f-205c-495f-956c-1937876426bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_91016d53-67f5-453c-85c8-9dc0ca70aab6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_InterestExpenseNonoperating_91016d53-67f5-453c-85c8-9dc0ca70aab6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_7bd8683e-6fba-45c2-94a6-f3570601706b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_7bd8683e-6fba-45c2-94a6-f3570601706b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_1b59a6f6-9b34-44bf-abc9-e772ee1fe0fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_1b59a6f6-9b34-44bf-abc9-e772ee1fe0fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_1e36f7ef-fa06-455d-b6cf-ced2c261294f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_1e36f7ef-fa06-455d-b6cf-ced2c261294f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_3f4ed0e0-0888-4c64-b2df-20908c8a4079" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_b64ef88d-bb79-472a-8a84-785f283df87f" xlink:to="loc_us-gaap_NetIncomeLoss_3f4ed0e0-0888-4c64-b2df-20908c8a4079" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/RetirementPlansDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#RetirementPlansDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/RetirementPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b3b34019-f02e-4cb2-8e87-6884b0c3b7ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_1ed6a784-2f6b-445b-ab3b-f0c4b75de295" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b3b34019-f02e-4cb2-8e87-6884b0c3b7ff" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_1ed6a784-2f6b-445b-ab3b-f0c4b75de295" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_DefinedBenefitPlanRequisiteServicePeriod_8179c250-669e-4404-9d75-a30cc50f39ac" xlink:href="fivn-20251231.xsd#fivn_DefinedBenefitPlanRequisiteServicePeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b3b34019-f02e-4cb2-8e87-6884b0c3b7ff" xlink:to="loc_fivn_DefinedBenefitPlanRequisiteServicePeriod_8179c250-669e-4404-9d75-a30cc50f39ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation_31feb839-d594-4951-8d75-119db7ee0599" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b3b34019-f02e-4cb2-8e87-6884b0c3b7ff" xlink:to="loc_us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation_31feb839-d594-4951-8d75-119db7ee0599" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PostemploymentBenefitsPeriodExpense_f4c1c2f6-ae1d-440e-b7ca-d7651481cd12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PostemploymentBenefitsPeriodExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b3b34019-f02e-4cb2-8e87-6884b0c3b7ff" xlink:to="loc_us-gaap_PostemploymentBenefitsPeriodExpense_f4c1c2f6-ae1d-440e-b7ca-d7651481cd12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#LeasesNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/LeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_c9350f2e-8afa-44af-b20b-37f4011eedc5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_47f4dcc8-0a9e-448b-bfe4-69e5a6784c5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_c9350f2e-8afa-44af-b20b-37f4011eedc5" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_47f4dcc8-0a9e-448b-bfe4-69e5a6784c5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_55465506-1bca-4c74-bffc-95cfe6b36ab1" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_47f4dcc8-0a9e-448b-bfe4-69e5a6784c5a" xlink:to="loc_srt_RangeAxis_55465506-1bca-4c74-bffc-95cfe6b36ab1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_941869ab-df7e-4866-b5fe-1dc379195b5e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_55465506-1bca-4c74-bffc-95cfe6b36ab1" xlink:to="loc_srt_RangeMember_941869ab-df7e-4866-b5fe-1dc379195b5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e96e4d36-355d-40d4-a8db-2bc84ffc34e9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_941869ab-df7e-4866-b5fe-1dc379195b5e" xlink:to="loc_srt_MinimumMember_e96e4d36-355d-40d4-a8db-2bc84ffc34e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_ae377dd1-01e9-42c3-a126-f510863f6a28" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_941869ab-df7e-4866-b5fe-1dc379195b5e" xlink:to="loc_srt_MaximumMember_ae377dd1-01e9-42c3-a126-f510863f6a28" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6c75f585-b5a6-4b09-a288-76e3457aa011" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_47f4dcc8-0a9e-448b-bfe4-69e5a6784c5a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6c75f585-b5a6-4b09-a288-76e3457aa011" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d57ab9e0-235a-4417-9920-5cbf39003bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6c75f585-b5a6-4b09-a288-76e3457aa011" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d57ab9e0-235a-4417-9920-5cbf39003bb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_f8286c02-aa8a-476e-9e58-7fa417b2263d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d57ab9e0-235a-4417-9920-5cbf39003bb3" xlink:to="loc_us-gaap_BuildingMember_f8286c02-aa8a-476e-9e58-7fa417b2263d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_LeaseholdImprovementsAndPropertyAndEquipmentMember_2ef2f34f-4c23-4613-9a35-be31733b6203" xlink:href="fivn-20251231.xsd#fivn_LeaseholdImprovementsAndPropertyAndEquipmentMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d57ab9e0-235a-4417-9920-5cbf39003bb3" xlink:to="loc_fivn_LeaseholdImprovementsAndPropertyAndEquipmentMember_2ef2f34f-4c23-4613-9a35-be31733b6203" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_47f4dcc8-0a9e-448b-bfe4-69e5a6784c5a" xlink:to="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_9bc9da9d-a589-4871-bb39-ea2608584504" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_9bc9da9d-a589-4871-bb39-ea2608584504" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_f9c96d50-20d2-4c3d-9aab-062b79d41736" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_f9c96d50-20d2-4c3d-9aab-062b79d41736" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_LesseeOperatingLeaseOptionToTerminateNotice_7ce2e8df-47ac-4381-99a8-a9e925d8197b" xlink:href="fivn-20251231.xsd#fivn_LesseeOperatingLeaseOptionToTerminateNotice"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_fivn_LesseeOperatingLeaseOptionToTerminateNotice_7ce2e8df-47ac-4381-99a8-a9e925d8197b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeaseTermOfContract1_6a356aec-9889-428e-8de5-2d7209f90a13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeFinanceLeaseTermOfContract1"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_us-gaap_LesseeFinanceLeaseTermOfContract1_6a356aec-9889-428e-8de5-2d7209f90a13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_d950894a-2b7e-40f0-8e33-62c4ce3ed02e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_d950894a-2b7e-40f0-8e33-62c4ce3ed02e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_FinanceLeaseLiabilityAcquiredCurrent_6c5b6650-a93d-48bd-a005-08dfee937ede" xlink:href="fivn-20251231.xsd#fivn_FinanceLeaseLiabilityAcquiredCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_fivn_FinanceLeaseLiabilityAcquiredCurrent_6c5b6650-a93d-48bd-a005-08dfee937ede" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_FinanceLeaseLiabilityAcquiredNoncurrent_179e2d40-a328-4c2c-8d66-48384dfa3e44" xlink:href="fivn-20251231.xsd#fivn_FinanceLeaseLiabilityAcquiredNoncurrent"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_fivn_FinanceLeaseLiabilityAcquiredNoncurrent_179e2d40-a328-4c2c-8d66-48384dfa3e44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_53c17b9c-1814-4b39-bcc0-68d439fe6a94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_53c17b9c-1814-4b39-bcc0-68d439fe6a94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_OperatingLeaseNumberOfLeaseFacilitiesClosed_20266fd7-a64a-4433-97e0-4a0383b80167" xlink:href="fivn-20251231.xsd#fivn_OperatingLeaseNumberOfLeaseFacilitiesClosed"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c8bb5c05-143f-495b-a2ed-cd0794eb77f5" xlink:to="loc_fivn_OperatingLeaseNumberOfLeaseFacilitiesClosed_20266fd7-a64a-4433-97e0-4a0383b80167" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/LeasesScheduleofLeaseCostandSupplementalCashFlowDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#LeasesScheduleofLeaseCostandSupplementalCashFlowDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/LeasesScheduleofLeaseCostandSupplementalCashFlowDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_ea4da5bd-9175-43c1-aa3e-475c5a0141b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_392b47d9-b8d2-4a18-b7f5-a0e60ad9fe1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ea4da5bd-9175-43c1-aa3e-475c5a0141b0" xlink:to="loc_us-gaap_OperatingLeaseCost_392b47d9-b8d2-4a18-b7f5-a0e60ad9fe1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_d48651ab-7bfe-4f03-afaf-79d3363ed73f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeFinanceLeaseDescriptionAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ea4da5bd-9175-43c1-aa3e-475c5a0141b0" xlink:to="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_d48651ab-7bfe-4f03-afaf-79d3363ed73f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_99549f84-6273-41e2-b292-309f9c08329b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_d48651ab-7bfe-4f03-afaf-79d3363ed73f" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_99549f84-6273-41e2-b292-309f9c08329b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_cab1bbf2-ee39-4bfb-9812-3cbf86cdd4aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_d48651ab-7bfe-4f03-afaf-79d3363ed73f" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_cab1bbf2-ee39-4bfb-9812-3cbf86cdd4aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_FinanceLeaseCost_901010d6-6ccc-4f80-9b60-e1c1a06bee2c" xlink:href="fivn-20251231.xsd#fivn_FinanceLeaseCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_d48651ab-7bfe-4f03-afaf-79d3363ed73f" xlink:to="loc_fivn_FinanceLeaseCost_901010d6-6ccc-4f80-9b60-e1c1a06bee2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_73178b24-4679-4e8c-9352-406ef2fd5577" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashFlowOperatingActivitiesLesseeAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ea4da5bd-9175-43c1-aa3e-475c5a0141b0" xlink:to="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_73178b24-4679-4e8c-9352-406ef2fd5577" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_fbfdeac9-8736-4bbb-bb56-67b756253252" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeasePayments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_73178b24-4679-4e8c-9352-406ef2fd5577" xlink:to="loc_us-gaap_OperatingLeasePayments_fbfdeac9-8736-4bbb-bb56-67b756253252" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_04d98d6c-4060-4ffa-9764-53baa5bd836d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_73178b24-4679-4e8c-9352-406ef2fd5577" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_04d98d6c-4060-4ffa-9764-53baa5bd836d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract_fab33997-43ca-4a4a-b889-5d7a79d5c9d7" xlink:href="fivn-20251231.xsd#fivn_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ea4da5bd-9175-43c1-aa3e-475c5a0141b0" xlink:to="loc_fivn_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract_fab33997-43ca-4a4a-b889-5d7a79d5c9d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_33df53fb-5920-4d8d-9447-66c35f9a8b1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract_fab33997-43ca-4a4a-b889-5d7a79d5c9d7" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_33df53fb-5920-4d8d-9447-66c35f9a8b1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_30fdd7fc-4553-48fe-9a3d-cd5335a45af2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract_fab33997-43ca-4a4a-b889-5d7a79d5c9d7" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_30fdd7fc-4553-48fe-9a3d-cd5335a45af2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/LeasesScheduleofBalanceSheetInformationRelatedtoLeasesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#LeasesScheduleofBalanceSheetInformationRelatedtoLeasesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/LeasesScheduleofBalanceSheetInformationRelatedtoLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_019b22c9-a59e-7a64-a974-9fe900311162" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_c2ab7489-7617-415a-9d3e-f34ec2bcb6d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_019b22c9-a59e-7a64-a974-9fe900311162" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_c2ab7489-7617-415a-9d3e-f34ec2bcb6d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_6825db03-ae07-42cc-8511-fa2c289f325e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_c2ab7489-7617-415a-9d3e-f34ec2bcb6d1" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_6825db03-ae07-42cc-8511-fa2c289f325e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_30bda40a-2486-489d-b4bf-e930149aef64" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_6825db03-ae07-42cc-8511-fa2c289f325e" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_30bda40a-2486-489d-b4bf-e930149aef64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_FixedAssetsExcludingNewFinanceLeaseMember_7f61fbe6-ca30-4e7d-a98b-8de947f70e4a" xlink:href="fivn-20251231.xsd#fivn_FixedAssetsExcludingNewFinanceLeaseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_30bda40a-2486-489d-b4bf-e930149aef64" xlink:to="loc_fivn_FixedAssetsExcludingNewFinanceLeaseMember_7f61fbe6-ca30-4e7d-a98b-8de947f70e4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_7e33f683-3bd7-4700-b46f-741ce8ff4de4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_c2ab7489-7617-415a-9d3e-f34ec2bcb6d1" xlink:to="loc_us-gaap_LesseeLeaseDescriptionLineItems_7e33f683-3bd7-4700-b46f-741ce8ff4de4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesOperatingAbstract_e6894c4d-20e4-4fcd-beea-39c26df76144" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesOperatingAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_7e33f683-3bd7-4700-b46f-741ce8ff4de4" xlink:to="loc_us-gaap_LeasesOperatingAbstract_e6894c4d-20e4-4fcd-beea-39c26df76144" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_78d81800-64af-4066-8ec9-5ae446fd4bdc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesOperatingAbstract_e6894c4d-20e4-4fcd-beea-39c26df76144" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_78d81800-64af-4066-8ec9-5ae446fd4bdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityAbstract_45aff39f-b35a-4722-93fa-142efb9cb939" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesOperatingAbstract_e6894c4d-20e4-4fcd-beea-39c26df76144" xlink:to="loc_us-gaap_OperatingLeaseLiabilityAbstract_45aff39f-b35a-4722-93fa-142efb9cb939" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_4d952b6d-58cd-4421-80ec-50cc0668dd67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilityAbstract_45aff39f-b35a-4722-93fa-142efb9cb939" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_4d952b6d-58cd-4421-80ec-50cc0668dd67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_7d68b0a5-8064-4916-8d08-c84d80083949" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilityAbstract_45aff39f-b35a-4722-93fa-142efb9cb939" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_7d68b0a5-8064-4916-8d08-c84d80083949" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_a2f25cfe-1b15-494c-b51a-dfddc379da72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilityAbstract_45aff39f-b35a-4722-93fa-142efb9cb939" xlink:to="loc_us-gaap_OperatingLeaseLiability_a2f25cfe-1b15-494c-b51a-dfddc379da72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_7e33f683-3bd7-4700-b46f-741ce8ff4de4" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_897d0b6e-2e8e-4628-a145-950137cfb04e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_897d0b6e-2e8e-4628-a145-950137cfb04e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization_2aaa7844-5d06-4323-96b1-49e96be3d764" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization_2aaa7844-5d06-4323-96b1-49e96be3d764" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization_bd7459ad-17ba-4b82-9848-2e6d2003db9a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization_bd7459ad-17ba-4b82-9848-2e6d2003db9a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_12d1bfca-adaa-48ae-8b94-c97830898d53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_12d1bfca-adaa-48ae-8b94-c97830898d53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_2f83b459-9c04-4a8c-81c0-38a1e82eb585" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_2f83b459-9c04-4a8c-81c0-38a1e82eb585" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_c6b9fd14-e048-46c0-b8e4-ef6afe6a772d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_c6b9fd14-e048-46c0-b8e4-ef6afe6a772d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_9fb63972-189a-4533-ae3b-444e716fa7fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAfterAccumulatedAmortizationAbstract_1b7f4d67-20c6-4625-8555-e22f9459f0d9" xlink:to="loc_us-gaap_FinanceLeaseLiability_9fb63972-189a-4533-ae3b-444e716fa7fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/LeasesScheduleofWeightedAverageRemainingTermsandDiscountRatesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#LeasesScheduleofWeightedAverageRemainingTermsandDiscountRatesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/LeasesScheduleofWeightedAverageRemainingTermsandDiscountRatesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_c642fbdc-3079-4b0c-a0f7-ee9dba32d9ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_382df297-2dc8-4689-b48e-f558822ed59a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_c642fbdc-3079-4b0c-a0f7-ee9dba32d9ec" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_382df297-2dc8-4689-b48e-f558822ed59a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_3bb129cd-0d93-417d-9070-426591b00b7e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_c642fbdc-3079-4b0c-a0f7-ee9dba32d9ec" xlink:to="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_3bb129cd-0d93-417d-9070-426591b00b7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_a69faf02-1954-4f57-a40a-75ecc3b8037b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_c642fbdc-3079-4b0c-a0f7-ee9dba32d9ec" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_a69faf02-1954-4f57-a40a-75ecc3b8037b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_5bf216e6-8acf-4699-a418-6be9fb7b7d26" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_c642fbdc-3079-4b0c-a0f7-ee9dba32d9ec" xlink:to="loc_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_5bf216e6-8acf-4699-a418-6be9fb7b7d26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/LeasesScheduleofLeaseMaturitiesDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#LeasesScheduleofLeaseMaturitiesDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/LeasesScheduleofLeaseMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_b519f996-bb20-4dbe-97b4-a50838464aed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_b519f996-bb20-4dbe-97b4-a50838464aed" xlink:to="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_f959ff6c-3df9-4654-94a6-f3f7bea80cd4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_f959ff6c-3df9-4654-94a6-f3f7bea80cd4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_e1c8486a-7718-4942-b173-24d73efcb857" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_e1c8486a-7718-4942-b173-24d73efcb857" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_29513ee7-84c0-47b2-bc46-b21c15ed0884" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_29513ee7-84c0-47b2-bc46-b21c15ed0884" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_69ada245-56a6-45c6-b28b-bbdfba17bcc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_69ada245-56a6-45c6-b28b-bbdfba17bcc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_be591a07-299f-44ba-a3b6-80aa90143ebe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_be591a07-299f-44ba-a3b6-80aa90143ebe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_70b37d0a-5abe-4618-9c36-eb32b07f8bae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_70b37d0a-5abe-4618-9c36-eb32b07f8bae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_8c025411-58ea-48c8-8f00-fe76c128da08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_8c025411-58ea-48c8-8f00-fe76c128da08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_1063fe52-03f2-4417-8f59-062eed622d1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_1063fe52-03f2-4417-8f59-062eed622d1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_fa4627c5-9547-4d5b-8fa4-93c2684d46df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_cdf42424-835b-4b50-a820-c27036d3399e" xlink:to="loc_us-gaap_OperatingLeaseLiability_fa4627c5-9547-4d5b-8fa4-93c2684d46df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_b519f996-bb20-4dbe-97b4-a50838464aed" xlink:to="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_8b709c87-caa0-425a-93a6-482d89a8c3ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_8b709c87-caa0-425a-93a6-482d89a8c3ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_e3ecf729-4618-4b9e-b19f-050a307baa53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_e3ecf729-4618-4b9e-b19f-050a307baa53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_8fc06944-7173-427e-8b3c-f0a36678d465" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_8fc06944-7173-427e-8b3c-f0a36678d465" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_c57b9478-457b-4924-97de-63e482621467" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_c57b9478-457b-4924-97de-63e482621467" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_fed969de-46a2-4a5d-8948-01d3825dcc3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_fed969de-46a2-4a5d-8948-01d3825dcc3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_601ae29c-b38c-4f97-b820-dbc0bc32f3f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_601ae29c-b38c-4f97-b820-dbc0bc32f3f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_2ead1062-3b52-4147-9ccf-d248767b6bc2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_2ead1062-3b52-4147-9ccf-d248767b6bc2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_96d766eb-5aad-45af-8b9e-a3440829e3fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_96d766eb-5aad-45af-8b9e-a3440829e3fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_9c2eb408-7547-499e-b052-b514b8bba0d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_148eb277-3353-4f09-843b-bc4b76a78959" xlink:to="loc_us-gaap_FinanceLeaseLiability_9c2eb408-7547-499e-b052-b514b8bba0d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/AcquisitionNarrativeDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#AcquisitionNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/AcquisitionNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_a01ac0a2-1992-440f-8c55-4d684770cc39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_e74129f0-2be2-4e6a-95a1-5eb896105208" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_a01ac0a2-1992-440f-8c55-4d684770cc39" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_e74129f0-2be2-4e6a-95a1-5eb896105208" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_b8111a39-9458-4641-a57e-d95ee68525ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_e74129f0-2be2-4e6a-95a1-5eb896105208" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_b8111a39-9458-4641-a57e-d95ee68525ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_406c7c02-8083-47f6-8c97-9548f484ec07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b8111a39-9458-4641-a57e-d95ee68525ba" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_406c7c02-8083-47f6-8c97-9548f484ec07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AcqueonMember_d3123281-149b-4812-b60e-be6e7d0fc311" xlink:href="fivn-20251231.xsd#fivn_AcqueonMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_406c7c02-8083-47f6-8c97-9548f484ec07" xlink:to="loc_fivn_AcqueonMember_d3123281-149b-4812-b60e-be6e7d0fc311" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AceyusIncMember_c92bdc0f-e761-45dc-92ff-b41083808aa7" xlink:href="fivn-20251231.xsd#fivn_AceyusIncMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_406c7c02-8083-47f6-8c97-9548f484ec07" xlink:to="loc_fivn_AceyusIncMember_c92bdc0f-e761-45dc-92ff-b41083808aa7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_2b547c74-1821-4ea0-a0f3-43339b762b62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_e74129f0-2be2-4e6a-95a1-5eb896105208" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_2b547c74-1821-4ea0-a0f3-43339b762b62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a04dfe75-70e2-4700-983d-17776f08a96c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_2b547c74-1821-4ea0-a0f3-43339b762b62" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a04dfe75-70e2-4700-983d-17776f08a96c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_4e064ebf-59af-4af6-8b70-530d0985665d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a04dfe75-70e2-4700-983d-17776f08a96c" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_4e064ebf-59af-4af6-8b70-530d0985665d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_1397a136-8792-499c-8f7e-fff4bb13de3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerRelatedIntangibleAssetsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a04dfe75-70e2-4700-983d-17776f08a96c" xlink:to="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_1397a136-8792-499c-8f7e-fff4bb13de3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksMember_b73e3127-6817-4e92-96db-a798a942d622" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TrademarksMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_a04dfe75-70e2-4700-983d-17776f08a96c" xlink:to="loc_us-gaap_TrademarksMember_b73e3127-6817-4e92-96db-a798a942d622" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_e74129f0-2be2-4e6a-95a1-5eb896105208" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_cf8e0fa3-864e-4b4f-af0b-2cfcd9346c40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_cf8e0fa3-864e-4b4f-af0b-2cfcd9346c40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_943ddf50-a7a4-4b40-94fd-56c1a35ad04f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:to="loc_us-gaap_Goodwill_943ddf50-a7a4-4b40-94fd-56c1a35ad04f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred_cc289126-a6f7-411d-ad85-789489f3c433" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:to="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred_cc289126-a6f7-411d-ad85-789489f3c433" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_b62c11c1-ea5c-469b-9089-9046ff8d6f9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_b62c11c1-ea5c-469b-9089-9046ff8d6f9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_d7621a77-298e-4b37-be03-a92a3028b611" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6b76104d-7100-4a8c-aa79-4bbff07bc758" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_d7621a77-298e-4b37-be03-a92a3028b611" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/AcquisitionScheduleofRecognizedIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#AcquisitionScheduleofRecognizedIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/AcquisitionScheduleofRecognizedIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_ab219d4f-a998-4f04-9e8a-7def8d2a3d38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_87a8eb4c-61eb-4062-9fc8-ed4d6ab128b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_ab219d4f-a998-4f04-9e8a-7def8d2a3d38" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_87a8eb4c-61eb-4062-9fc8-ed4d6ab128b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_2b3bf1bb-d83d-4d0f-a50f-624ecb0c891f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_87a8eb4c-61eb-4062-9fc8-ed4d6ab128b1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_2b3bf1bb-d83d-4d0f-a50f-624ecb0c891f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_56e661b3-b682-4a49-a52e-2a213e9bae53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2b3bf1bb-d83d-4d0f-a50f-624ecb0c891f" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_56e661b3-b682-4a49-a52e-2a213e9bae53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AcqueonMember_67fd800a-fa24-48ad-9dfc-3d457ff64a65" xlink:href="fivn-20251231.xsd#fivn_AcqueonMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_56e661b3-b682-4a49-a52e-2a213e9bae53" xlink:to="loc_fivn_AcqueonMember_67fd800a-fa24-48ad-9dfc-3d457ff64a65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_AceyusIncMember_b0a0c110-6833-4796-b57f-c8843a3c0a45" xlink:href="fivn-20251231.xsd#fivn_AceyusIncMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_56e661b3-b682-4a49-a52e-2a213e9bae53" xlink:to="loc_fivn_AceyusIncMember_b0a0c110-6833-4796-b57f-c8843a3c0a45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_616abe5d-69f3-4f05-9589-cbbac8bf76bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_87a8eb4c-61eb-4062-9fc8-ed4d6ab128b1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_616abe5d-69f3-4f05-9589-cbbac8bf76bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ee60d504-5696-461c-957b-6c83d5cc47c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_616abe5d-69f3-4f05-9589-cbbac8bf76bc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ee60d504-5696-461c-957b-6c83d5cc47c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_b44b908c-361b-4bd2-97e2-25e337fdcb8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ee60d504-5696-461c-957b-6c83d5cc47c5" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_b44b908c-361b-4bd2-97e2-25e337fdcb8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_3b718528-e6d8-40f9-89e5-7e438f01ccce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerRelatedIntangibleAssetsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ee60d504-5696-461c-957b-6c83d5cc47c5" xlink:to="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_3b718528-e6d8-40f9-89e5-7e438f01ccce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksMember_298dffe8-a64c-4a6a-b9ac-5e854ca72f42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TrademarksMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ee60d504-5696-461c-957b-6c83d5cc47c5" xlink:to="loc_us-gaap_TrademarksMember_298dffe8-a64c-4a6a-b9ac-5e854ca72f42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_87a8eb4c-61eb-4062-9fc8-ed4d6ab128b1" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_25a99daa-2f91-4873-8c9a-60d9cc1c4dca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_25a99daa-2f91-4873-8c9a-60d9cc1c4dca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTangibleAssetsAcquired_e2b3f45d-ac69-4f48-a0ee-ebaf08980406" xlink:href="fivn-20251231.xsd#fivn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTangibleAssetsAcquired"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_fivn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTangibleAssetsAcquired_e2b3f45d-ac69-4f48-a0ee-ebaf08980406" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_e68c5eea-be7e-49ae-aab4-da35d30d0331" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_e68c5eea-be7e-49ae-aab4-da35d30d0331" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_71133f90-f194-4a06-9619-101927cc86e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_71133f90-f194-4a06-9619-101927cc86e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_3d9f05d0-9a8a-462d-b4a7-69b496177117" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_Goodwill_3d9f05d0-9a8a-462d-b4a7-69b496177117" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAcquiredIncludingGoodwill_51c47b31-2f51-4703-97fe-1c2f5c0c1910" xlink:href="fivn-20251231.xsd#fivn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAcquiredIncludingGoodwill"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_fivn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAcquiredIncludingGoodwill_51c47b31-2f51-4703-97fe-1c2f5c0c1910" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_99f47eef-349d-469b-99a8-293a672a6623" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_99f47eef-349d-469b-99a8-293a672a6623" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_4b467197-5b36-444c-ae6c-c7255af2e1c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_4b467197-5b36-444c-ae6c-c7255af2e1c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_49c799a1-a6a3-4bf9-9a03-fc7996c18a23" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_42093af4-225d-40c8-8455-aaa963a78df4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_49c799a1-a6a3-4bf9-9a03-fc7996c18a23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/RestructuringDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#RestructuringDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/RestructuringDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_0a55ce9d-b49e-4667-9605-129a8f7a3e90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b60942a9-af7e-44e3-9797-88839515767c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_0a55ce9d-b49e-4667-9605-129a8f7a3e90" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b60942a9-af7e-44e3-9797-88839515767c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_a1405155-0d8d-42cb-8b85-5d81a3e8e613" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b60942a9-af7e-44e3-9797-88839515767c" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_a1405155-0d8d-42cb-8b85-5d81a3e8e613" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_2c225564-0c34-457c-aaa9-b2a951d62a69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_a1405155-0d8d-42cb-8b85-5d81a3e8e613" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_2c225564-0c34-457c-aaa9-b2a951d62a69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_b13999a3-778d-4571-bc5c-861a987243f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_2c225564-0c34-457c-aaa9-b2a951d62a69" xlink:to="loc_us-gaap_CostOfSalesMember_b13999a3-778d-4571-bc5c-861a987243f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_bf03a482-7de1-415e-8399-32b4b3a20a2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_2c225564-0c34-457c-aaa9-b2a951d62a69" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_bf03a482-7de1-415e-8399-32b4b3a20a2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_78c668e5-e64d-4df7-89f5-2dfd46692a1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_2c225564-0c34-457c-aaa9-b2a951d62a69" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_78c668e5-e64d-4df7-89f5-2dfd46692a1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_76772420-5294-4f6b-96c0-fbe6aa9d6ef3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_2c225564-0c34-457c-aaa9-b2a951d62a69" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_76772420-5294-4f6b-96c0-fbe6aa9d6ef3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_019b1374-0755-78f6-a68e-c4389cb52d23" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b60942a9-af7e-44e3-9797-88839515767c" xlink:to="loc_us-gaap_RestructuringPlanAxis_019b1374-0755-78f6-a68e-c4389cb52d23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019b1374-0755-7d8a-9820-a82e87996ce6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanAxis_019b1374-0755-78f6-a68e-c4389cb52d23" xlink:to="loc_us-gaap_RestructuringPlanDomain_019b1374-0755-7d8a-9820-a82e87996ce6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_A2024PlanMember_019b1374-0755-7602-8192-a720ed1b863d" xlink:href="fivn-20251231.xsd#fivn_A2024PlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b1374-0755-7d8a-9820-a82e87996ce6" xlink:to="loc_fivn_A2024PlanMember_019b1374-0755-7602-8192-a720ed1b863d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_A2025PlanMember_019b1374-0755-7d97-bd36-d6449a5f5c7f" xlink:href="fivn-20251231.xsd#fivn_A2025PlanMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b1374-0755-7d8a-9820-a82e87996ce6" xlink:to="loc_fivn_A2025PlanMember_019b1374-0755-7d97-bd36-d6449a5f5c7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019b1374-0755-73ba-82fb-dcb83c8f73eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b60942a9-af7e-44e3-9797-88839515767c" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019b1374-0755-73ba-82fb-dcb83c8f73eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b1374-0755-7698-858d-cfb336d4ccc6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019b1374-0755-73ba-82fb-dcb83c8f73eb" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b1374-0755-7698-858d-cfb336d4ccc6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockCompensationPlanMember_019b1374-0755-7a6a-8018-3acf6fe5ad16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockCompensationPlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019b1374-0755-7698-858d-cfb336d4ccc6" xlink:to="loc_us-gaap_StockCompensationPlanMember_019b1374-0755-7a6a-8018-3acf6fe5ad16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b60942a9-af7e-44e3-9797-88839515767c" xlink:to="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent_019b12f2-9e5b-7222-bdc1-9a08c39c8fdc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent_019b12f2-9e5b-7222-bdc1-9a08c39c8fdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019b12f2-c3fe-744f-b706-608f13263e87" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_RestructuringCharges_019b12f2-c3fe-744f-b706-608f13263e87" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019b12f2-db1e-7a41-a116-bb03550eb67a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019b12f2-db1e-7a41-a116-bb03550eb67a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_019b12f2-fbe0-7d62-b47b-c86edf1da51b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_PaymentsForRestructuring_019b12f2-fbe0-7d62-b47b-c86edf1da51b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_019b12f3-0edf-7862-9b16-efe0d9b70326" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserve"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_RestructuringReserve_019b12f3-0edf-7862-9b16-efe0d9b70326" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_019b12f2-ec66-71ac-8e62-45d2760b5a45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_019b12f2-ec66-71ac-8e62-45d2760b5a45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019b12f3-1fc4-773b-9e81-442435819f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_ba4954e8-8c38-4982-9673-2c44b49950c2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019b12f3-1fc4-773b-9e81-442435819f1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleofQuarterlyFinancialInformationDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#SelectedQuarterlyFinancialDataUnauditedScheduleofQuarterlyFinancialInformationDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleofQuarterlyFinancialInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_1b849039-c333-4332-9e02-adc0bf079996" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_1b849039-c333-4332-9e02-adc0bf079996" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_e72ebc92-1654-4cde-8b21-2c2f633d8f6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfRevenue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_CostOfRevenue_e72ebc92-1654-4cde-8b21-2c2f633d8f6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_8e3b092f-3e66-4028-8ff1-3dcace65bf69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_GrossProfit_8e3b092f-3e66-4028-8ff1-3dcace65bf69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_bcc65c91-77b4-4e9b-86b3-8f4ba5639fc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_OperatingExpensesAbstract_bcc65c91-77b4-4e9b-86b3-8f4ba5639fc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_f31bc3f4-63ad-44aa-8373-19a0d0f48d97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_bcc65c91-77b4-4e9b-86b3-8f4ba5639fc9" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_f31bc3f4-63ad-44aa-8373-19a0d0f48d97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_431fe2c3-8ae8-4c7b-8154-d60519436a3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_bcc65c91-77b4-4e9b-86b3-8f4ba5639fc9" xlink:to="loc_us-gaap_SellingAndMarketingExpense_431fe2c3-8ae8-4c7b-8154-d60519436a3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_d1799cb8-adaf-4738-95ea-a99012b28a9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_bcc65c91-77b4-4e9b-86b3-8f4ba5639fc9" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_d1799cb8-adaf-4738-95ea-a99012b28a9d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_ba3f7a51-ef61-443e-b47a-17202c1e2141" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_bcc65c91-77b4-4e9b-86b3-8f4ba5639fc9" xlink:to="loc_us-gaap_OperatingExpenses_ba3f7a51-ef61-443e-b47a-17202c1e2141" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_96f4e969-93a1-4cdc-a5cb-87eaf0b20e2a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_OperatingIncomeLoss_96f4e969-93a1-4cdc-a5cb-87eaf0b20e2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_24006c79-da2b-425a-9b91-74c12d18cc39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_24006c79-da2b-425a-9b91-74c12d18cc39" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_122a1f43-6e42-49e8-b1a2-3953e6789604" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_24006c79-da2b-425a-9b91-74c12d18cc39" xlink:to="loc_us-gaap_InterestExpenseNonoperating_122a1f43-6e42-49e8-b1a2-3953e6789604" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_0a5e068e-2e67-4e62-af04-e9a08999600e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_24006c79-da2b-425a-9b91-74c12d18cc39" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_0a5e068e-2e67-4e62-af04-e9a08999600e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_e3d17bfc-67f7-400c-b883-7d92f80b0fd2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_24006c79-da2b-425a-9b91-74c12d18cc39" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_e3d17bfc-67f7-400c-b883-7d92f80b0fd2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_c058ec5b-3049-48ff-8185-2445f49cd52e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_24006c79-da2b-425a-9b91-74c12d18cc39" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_c058ec5b-3049-48ff-8185-2445f49cd52e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1d0af5b6-9ece-44ba-889f-33807e9d6918" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1d0af5b6-9ece-44ba-889f-33807e9d6918" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_8ecbd3b1-39b1-42a6-b4b7-fc905fc46de2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_8ecbd3b1-39b1-42a6-b4b7-fc905fc46de2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_82e96b8a-0a90-4759-9fb4-b6f84fac3178" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_NetIncomeLoss_82e96b8a-0a90-4759-9fb4-b6f84fac3178" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_bd13fbce-7b31-4ae2-95f9-192a78d97a66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_EarningsPerShareAbstract_bd13fbce-7b31-4ae2-95f9-192a78d97a66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_505bce55-afdf-448d-aff3-dfd7fed9e03b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_bd13fbce-7b31-4ae2-95f9-192a78d97a66" xlink:to="loc_us-gaap_EarningsPerShareBasic_505bce55-afdf-448d-aff3-dfd7fed9e03b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_eafa1deb-84ef-4ab9-9829-908eacf307ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_bd13fbce-7b31-4ae2-95f9-192a78d97a66" xlink:to="loc_us-gaap_EarningsPerShareDiluted_eafa1deb-84ef-4ab9-9829-908eacf307ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_805e6473-6456-452a-9bae-37bd8d7ad361" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_077bb531-3d17-4cb9-a549-49f98f6a74d4" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_805e6473-6456-452a-9bae-37bd8d7ad361" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_0b5d20e4-fb51-4bbf-a7c6-7a23d49cf422" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_805e6473-6456-452a-9bae-37bd8d7ad361" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_0b5d20e4-fb51-4bbf-a7c6-7a23d49cf422" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_579f2a37-4d77-4f86-be2f-d1ec079527cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_805e6473-6456-452a-9bae-37bd8d7ad361" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_579f2a37-4d77-4f86-be2f-d1ec079527cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleofAllocationofStockBasedCompensationExpenseDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#SelectedQuarterlyFinancialDataUnauditedScheduleofAllocationofStockBasedCompensationExpenseDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleofAllocationofStockBasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_12c66322-15fd-4efb-b787-b6da36ffdaac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_QuarterlyFinancialInformationTable_3440a56d-f1a1-4ff0-b150-579d352ba3bb" xlink:href="fivn-20251231.xsd#fivn_QuarterlyFinancialInformationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_12c66322-15fd-4efb-b787-b6da36ffdaac" xlink:to="loc_fivn_QuarterlyFinancialInformationTable_3440a56d-f1a1-4ff0-b150-579d352ba3bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_201cc5e3-a253-483c-bbce-1c75187d99da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_QuarterlyFinancialInformationTable_3440a56d-f1a1-4ff0-b150-579d352ba3bb" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_201cc5e3-a253-483c-bbce-1c75187d99da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_6ce4c629-e654-41b1-bd2f-7dad143d731c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_201cc5e3-a253-483c-bbce-1c75187d99da" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_6ce4c629-e654-41b1-bd2f-7dad143d731c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_02fe90c5-c2a9-43a7-9703-f79405ff04af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_6ce4c629-e654-41b1-bd2f-7dad143d731c" xlink:to="loc_us-gaap_CostOfSalesMember_02fe90c5-c2a9-43a7-9703-f79405ff04af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_44f6f816-e4e2-468e-9845-8f421dfe3c04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_6ce4c629-e654-41b1-bd2f-7dad143d731c" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_44f6f816-e4e2-468e-9845-8f421dfe3c04" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_18f7c6e8-98aa-432c-9e32-6022260791d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_6ce4c629-e654-41b1-bd2f-7dad143d731c" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_18f7c6e8-98aa-432c-9e32-6022260791d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_2cca457f-08f8-40dd-90e6-1c86a50f05ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_6ce4c629-e654-41b1-bd2f-7dad143d731c" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_2cca457f-08f8-40dd-90e6-1c86a50f05ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_QuarterlyFinancialInformationLineItems_5536c2a3-d7ae-456f-8343-97ab872a86e4" xlink:href="fivn-20251231.xsd#fivn_QuarterlyFinancialInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_QuarterlyFinancialInformationTable_3440a56d-f1a1-4ff0-b150-579d352ba3bb" xlink:to="loc_fivn_QuarterlyFinancialInformationLineItems_5536c2a3-d7ae-456f-8343-97ab872a86e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_009298f1-88bf-4e5f-8ced-982164206255" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_QuarterlyFinancialInformationLineItems_5536c2a3-d7ae-456f-8343-97ab872a86e4" xlink:to="loc_us-gaap_ShareBasedCompensation_009298f1-88bf-4e5f-8ced-982164206255" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleofAllocationofDepreciationandAmortizationExpenseDetails" xlink:type="simple" xlink:href="fivn-20251231.xsd#SelectedQuarterlyFinancialDataUnauditedScheduleofAllocationofDepreciationandAmortizationExpenseDetails"/>
  <link:presentationLink xlink:role="http://www.five9.com/role/SelectedQuarterlyFinancialDataUnauditedScheduleofAllocationofDepreciationandAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4b1feed0-f38c-41c3-a319-b5f9b3b85c25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_QuarterlyFinancialInformationTable_9dc8c19d-de6a-4412-9fae-88994734f7ed" xlink:href="fivn-20251231.xsd#fivn_QuarterlyFinancialInformationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4b1feed0-f38c-41c3-a319-b5f9b3b85c25" xlink:to="loc_fivn_QuarterlyFinancialInformationTable_9dc8c19d-de6a-4412-9fae-88994734f7ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_3e42be64-b54d-4be0-9202-c0d2eaaa2e25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_QuarterlyFinancialInformationTable_9dc8c19d-de6a-4412-9fae-88994734f7ed" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_3e42be64-b54d-4be0-9202-c0d2eaaa2e25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_052cd65c-3a55-46f3-a12f-79108e124a3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_3e42be64-b54d-4be0-9202-c0d2eaaa2e25" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_052cd65c-3a55-46f3-a12f-79108e124a3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_9529df13-7168-4f00-ade9-081bc6ace6e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_052cd65c-3a55-46f3-a12f-79108e124a3e" xlink:to="loc_us-gaap_CostOfSalesMember_9529df13-7168-4f00-ade9-081bc6ace6e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_0ff446d3-a492-4b03-bfb2-6c2e11801326" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_052cd65c-3a55-46f3-a12f-79108e124a3e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_0ff446d3-a492-4b03-bfb2-6c2e11801326" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_5ce3dadf-59ad-4165-8d99-917d3c809278" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_052cd65c-3a55-46f3-a12f-79108e124a3e" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_5ce3dadf-59ad-4165-8d99-917d3c809278" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_4f4b801b-fadb-4111-8a9d-d69a5fc6d158" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_052cd65c-3a55-46f3-a12f-79108e124a3e" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_4f4b801b-fadb-4111-8a9d-d69a5fc6d158" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_fivn_QuarterlyFinancialInformationLineItems_0ae50b48-53fd-4270-a116-1b16116e5280" xlink:href="fivn-20251231.xsd#fivn_QuarterlyFinancialInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_QuarterlyFinancialInformationTable_9dc8c19d-de6a-4412-9fae-88994734f7ed" xlink:to="loc_fivn_QuarterlyFinancialInformationLineItems_0ae50b48-53fd-4270-a116-1b16116e5280" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_b6a559bb-41de-49ff-99c4-c222a29a142b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_fivn_QuarterlyFinancialInformationLineItems_0ae50b48-53fd-4270-a116-1b16116e5280" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_b6a559bb-41de-49ff-99c4-c222a29a142b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#AwardTimingDisclosure"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgDiscLineItems" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgDiscLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgMnpiDiscTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgMethodTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMethodTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgPredtrmndFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgPredtrmndFlag"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgPredtrmndFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgMnpiCnsdrdFlag"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgHowMnpiCnsdrdTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MnpiDiscTimedForCompValFlag"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardsCloseToMnpiDiscTableTextBlock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardsCloseToMnpiDiscTable"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="loc_us-gaap_AwardTypeAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_EmployeeStockOptionMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockAppreciationRightsSARSMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardsCloseToMnpiDiscIndName"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardUndrlygSecuritiesAmt"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardExrcPrice" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardExrcPrice"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardExrcPrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardGrantDateFairValue" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardGrantDateFairValue"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardGrantDateFairValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_UndrlygSecurityMktPriceChngPct"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ErrCompDisclosure"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RecoveryOfErrCompDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompRecoveryTable" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ErrCompRecoveryTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ErrCompRecoveryTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDateAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RestatementDateAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ErrCompRecoveryTable" xlink:to="loc_ecd_RestatementDateAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ErrCompRecoveryTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonNeosMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonNeosMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_ecd_NonNeosMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDeterminationDate" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RestatementDeterminationDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_RestatementDeterminationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AggtErrCompAmt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_AggtErrCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompAnalysisTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ErrCompAnalysisTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ErrCompAnalysisTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_StkPrcOrTsrEstimationMethodTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingAggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OutstandingAggtErrCompAmt"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingAggtErrCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AggtErrCompNotYetDeterminedTextBlock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryIndName"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OutstandingRecoveryIndName"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OutstandingRecoveryCompAmt"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingRecoveryCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RestatementDoesNotRequireRecoveryTextBlock"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpDisclosure"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PayVsPerformanceDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTable" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PvpTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PvpTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ExecutiveCategoryAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ExecutiveCategoryAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_ExecutiveCategoryAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllExecutiveCategoriesMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllExecutiveCategoriesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ExecutiveCategoryAxis" xlink:to="loc_ecd_AllExecutiveCategoriesMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllExecutiveCategoriesMember" xlink:to="loc_ecd_PeoMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonPeoNeoMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllExecutiveCategoriesMember" xlink:to="loc_ecd_NonPeoNeoMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToCompAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_AdjToCompAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllAdjToCompMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllAdjToCompMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AdjToCompAxis" xlink:to="loc_ecd_AllAdjToCompMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="loc_ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AggtPnsnAdjsSvcCstMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnAdjsSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PnsnAdjsSvcCstMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:to="loc_ecd_PnsnAdjsSvcCstMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnAdjsPrrSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PnsnAdjsPrrSvcCstMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:to="loc_ecd_PnsnAdjsPrrSvcCstMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsAdjsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="loc_ecd_EqtyAwrdsAdjsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsMember" xlink:to="loc_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsMember" xlink:to="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MeasureAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_MeasureAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PvpTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PvpTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CoSelectedMeasureName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CoSelectedMeasureName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NamedExecutiveOfficersFnTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeerGroupIssuersFnTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ChangedPeerGroupFnTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoTotalCompAmt"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoTotalCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoActuallyPaidCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoActuallyPaidCompAmt"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoActuallyPaidCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToPeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToPeoCompFnTextBlock"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToPeoCompFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonPeoNeoAvgTotalCompAmt"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonPeoNeoAvgCompActuallyPaidAmt"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToNonPeoNeoCompFnTextBlock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EquityValuationAssumptionDifferenceFnTextBlock"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsNetIncomeTextBlock"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TotalShareholderRtnVsPeerGroupTextBlock"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsOtherMeasureTextBlock"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TabularListTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TabularListTableTextBlock"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TabularListTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TotalShareholderRtnAmt"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TotalShareholderRtnAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeerGroupTotalShareholderRtnAmt"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CoSelectedMeasureAmt"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CoSelectedMeasureAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OtherPerfMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OtherPerfMeasureAmt"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_OtherPerfMeasureAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToCompAmt"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoName"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MeasureName"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_MeasureName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonGaapMeasureDescriptionTextBlock"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Additional402vDisclosureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_Additional402vDisclosureTextBlock"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_Additional402vDisclosureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnBnftsAdjFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PnsnBnftsAdjFnTextBlock"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PnsnBnftsAdjFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsAdjFnTextBlock"/>
    <link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_EqtyAwrdsAdjFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#InsiderTradingArrangements"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingArrLineItems" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTradingArrLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrByIndTable" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TradingArrByIndTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TradingArrByIndTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TradingArrAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="loc_ecd_TradingArrAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllTradingArrangementsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllTradingArrangementsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrAxis" xlink:to="loc_ecd_AllTradingArrangementsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MtrlTermsOfTrdArrTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndName" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrIndName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndTitle" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrIndTitle"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrIndTitle" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_Rule10b51ArrAdoptedFlag"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonRule10b51ArrAdoptedFlag"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrAdoptionDate" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrAdoptionDate"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrAdoptionDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_Rule10b51ArrTrmntdFlag"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonRule10b51ArrTrmntdFlag"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrTerminationDate" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrTerminationDate"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrTerminationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrExpirationDate" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrExpirationDate"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrExpirationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrDuration" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrDuration"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrDuration" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrSecuritiesAggAvailAmt"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#InsiderTradingPoliciesProc"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTradingPoliciesProcLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTrdPoliciesProcAdoptedFlag"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
