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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019fc8cb-af5a-7fbb-b1c8-6a534331cb19,g:992d745f-336b-4953-bee4-878f408b9d77-->
<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.8x8.com/role/CoverPage" xlink:type="simple" xlink:href="eght-20260803.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.8x8.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019fc8cb-af5a-7696-9759-e237b83b00fa" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_DocumentType_019fc8cb-af5a-7696-9759-e237b83b00fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019fc8cb-af5a-73f8-9243-327908e5a27c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_DocumentPeriodEndDate_019fc8cb-af5a-73f8-9243-327908e5a27c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019fc8cb-af5a-7ccd-8e14-ccc1eb773e52" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityRegistrantName_019fc8cb-af5a-7ccd-8e14-ccc1eb773e52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019fc8cb-af5a-741b-b1cb-a2dbda3f0b69" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019fc8cb-af5a-741b-b1cb-a2dbda3f0b69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019fc8cb-af5a-7cc5-b3f6-c782be0a4944" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityFileNumber_019fc8cb-af5a-7cc5-b3f6-c782be0a4944" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019fc8cb-af5a-730a-a57c-070ea0a5dfe6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityTaxIdentificationNumber_019fc8cb-af5a-730a-a57c-070ea0a5dfe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019fc8cb-af5a-7bcf-b3bf-db433b6417a5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityAddressAddressLine1_019fc8cb-af5a-7bcf-b3bf-db433b6417a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019fc8cb-af5a-7f2d-a955-5c60670e3e8f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityAddressCityOrTown_019fc8cb-af5a-7f2d-a955-5c60670e3e8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019fc8cb-af5a-7db8-89af-59dba09e4808" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityAddressStateOrProvince_019fc8cb-af5a-7db8-89af-59dba09e4808" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019fc8cb-af5a-79cf-87ba-b37c7a5d0562" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityAddressPostalZipCode_019fc8cb-af5a-79cf-87ba-b37c7a5d0562" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019fc8cb-af5a-7120-8079-95211e639709" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_CityAreaCode_019fc8cb-af5a-7120-8079-95211e639709" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019fc8cb-af5a-7993-adbb-6a1d8278f4fe" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_LocalPhoneNumber_019fc8cb-af5a-7993-adbb-6a1d8278f4fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019fc8cb-af5a-73e4-a7a3-8ca7283696b3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_Security12bTitle_019fc8cb-af5a-73e4-a7a3-8ca7283696b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019fc8cb-af5a-74c3-8976-1598a9b8a932" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_TradingSymbol_019fc8cb-af5a-74c3-8976-1598a9b8a932" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019fc8cb-af5a-710a-88aa-63329581a476" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_SecurityExchangeName_019fc8cb-af5a-710a-88aa-63329581a476" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019fc8cb-af5a-7333-830a-792ee688ce69" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_WrittenCommunications_019fc8cb-af5a-7333-830a-792ee688ce69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019fc8cb-af5a-77cd-9c32-ff5a1b922a58" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_SolicitingMaterial_019fc8cb-af5a-77cd-9c32-ff5a1b922a58" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019fc8cb-af5b-7d4b-8c3e-cf69addf1fe3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_PreCommencementTenderOffer_019fc8cb-af5b-7d4b-8c3e-cf69addf1fe3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019fc8cb-af5b-7f0a-84cf-3d8ed7e101af" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019fc8cb-af5b-7f0a-84cf-3d8ed7e101af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019fc8cb-af5b-7363-be8d-5cac9f321ba9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityEmergingGrowthCompany_019fc8cb-af5b-7363-be8d-5cac9f321ba9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019fc8cb-af5b-74a8-b1c0-7379949ccd15" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_EntityCentralIndexKey_019fc8cb-af5b-74a8-b1c0-7379949ccd15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019fc8cb-af5b-7e20-b12e-075f6ed09bdc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc8cb-af5a-78db-821e-10465b66fc82" xlink:to="loc_dei_AmendmentFlag_019fc8cb-af5b-7e20-b12e-075f6ed09bdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
