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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f6a2a-a2f2-7a91-9575-582e0b2caba9,g:fa095255-de79-43f5-a569-f94d4e5f8ede-->
<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://us.avtr.com/role/Documentandentityinformation" xlink:type="simple" xlink:href="avtr-20260714.xsd#Documentandentityinformation"/>
  <link:presentationLink xlink:role="http://us.avtr.com/role/Documentandentityinformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019f6a2a-a2f3-7ece-a433-79441c5b1b9a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019f6a2a-a2f3-767a-a2ef-8167c3139914" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f6a2a-a2f3-7ece-a433-79441c5b1b9a" xlink:to="loc_dei_DocumentInformationTable_019f6a2a-a2f3-767a-a2ef-8167c3139914" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationDocumentAxis_019f6a2a-a2f3-7e06-9e88-23d83df2b04d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationDocumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_019f6a2a-a2f3-767a-a2ef-8167c3139914" xlink:to="loc_dei_DocumentInformationDocumentAxis_019f6a2a-a2f3-7e06-9e88-23d83df2b04d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentDomain_019f6a2a-a2f3-762b-84aa-ff3d6bc97a91" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationDocumentAxis_019f6a2a-a2f3-7e06-9e88-23d83df2b04d" xlink:to="loc_dei_DocumentDomain_019f6a2a-a2f3-762b-84aa-ff3d6bc97a91" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6a2a-a2f3-7820-833c-26f5f38e372d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_019f6a2a-a2f3-767a-a2ef-8167c3139914" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6a2a-a2f3-7820-833c-26f5f38e372d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6a2a-a2f3-79b6-9f5f-314befb960b8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6a2a-a2f3-7820-833c-26f5f38e372d" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6a2a-a2f3-79b6-9f5f-314befb960b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019f6a2a-a2f3-71bb-ab1d-32b90b449283" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6a2a-a2f3-79b6-9f5f-314befb960b8" xlink:to="loc_us-gaap_CommonStockMember_019f6a2a-a2f3-71bb-ab1d-32b90b449283" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_019f6a2a-a2f3-767a-a2ef-8167c3139914" xlink:to="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019f6a2a-a2f3-7c51-a1c9-0451c31c92aa" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_DocumentType_019f6a2a-a2f3-7c51-a1c9-0451c31c92aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019f6a2a-a2f3-75df-9fc7-a18677b87a74" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_AmendmentFlag_019f6a2a-a2f3-75df-9fc7-a18677b87a74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019f6a2a-a2f3-7cc6-a39a-511b4692e03a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_DocumentPeriodEndDate_019f6a2a-a2f3-7cc6-a39a-511b4692e03a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019f6a2a-a2f3-72c5-9196-fe0d8190857a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityCentralIndexKey_019f6a2a-a2f3-72c5-9196-fe0d8190857a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019f6a2a-a2f3-78d6-b511-e4420d38f3f7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityRegistrantName_019f6a2a-a2f3-78d6-b511-e4420d38f3f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019f6a2a-a2f3-7920-b273-890215d6343c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019f6a2a-a2f3-7920-b273-890215d6343c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019f6a2a-a2f3-7a52-9ea8-bd0656a1eb31" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityFileNumber_019f6a2a-a2f3-7a52-9ea8-bd0656a1eb31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019f6a2a-a2f3-7f48-b78f-b8c00fbb28dc" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityTaxIdentificationNumber_019f6a2a-a2f3-7f48-b78f-b8c00fbb28dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019f6a2a-a2f3-7bfb-9fec-293f1c7cae9d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityAddressAddressLine1_019f6a2a-a2f3-7bfb-9fec-293f1c7cae9d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019f6a2a-a2f3-7737-9288-52cf7676b4a1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityAddressAddressLine2_019f6a2a-a2f3-7737-9288-52cf7676b4a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019f6a2a-a2f3-7a3f-af4a-c63e9402149a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityAddressCityOrTown_019f6a2a-a2f3-7a3f-af4a-c63e9402149a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019f6a2a-a2f3-71e1-890c-17da83df2453" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityAddressStateOrProvince_019f6a2a-a2f3-71e1-890c-17da83df2453" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019f6a2a-a2f3-7a16-b409-573f5f6c09aa" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityAddressPostalZipCode_019f6a2a-a2f3-7a16-b409-573f5f6c09aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019f6a2a-a2f3-7f17-9ec6-1f4223294690" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_CityAreaCode_019f6a2a-a2f3-7f17-9ec6-1f4223294690" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019f6a2a-a2f3-72d7-ae13-d5dc0295d2e7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_LocalPhoneNumber_019f6a2a-a2f3-72d7-ae13-d5dc0295d2e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019f6a2a-a2f3-7306-8ac9-90b7dda3a81d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_WrittenCommunications_019f6a2a-a2f3-7306-8ac9-90b7dda3a81d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019f6a2a-a2f3-7a35-9ba6-723a7c14e8d8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_SolicitingMaterial_019f6a2a-a2f3-7a35-9ba6-723a7c14e8d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019f6a2a-a2f3-70d6-9048-4a0e29d8561a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_PreCommencementTenderOffer_019f6a2a-a2f3-70d6-9048-4a0e29d8561a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019f6a2a-a2f3-7fcd-b376-f232e55671f1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019f6a2a-a2f3-7fcd-b376-f232e55671f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019f6a2a-a2f3-72ad-aa77-1a2d286f3fd4" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_Security12bTitle_019f6a2a-a2f3-72ad-aa77-1a2d286f3fd4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019f6a2a-a2f3-7d0e-8b96-3f57de02f78c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_TradingSymbol_019f6a2a-a2f3-7d0e-8b96-3f57de02f78c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019f6a2a-a2f3-7410-8f18-33c43ccc48e2" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_SecurityExchangeName_019f6a2a-a2f3-7410-8f18-33c43ccc48e2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019f6a2a-a2f3-7a6d-b3eb-ef9492d33935" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019f6a2a-a2f3-7e97-b51c-64b46fdd5d15" xlink:to="loc_dei_EntityEmergingGrowthCompany_019f6a2a-a2f3-7a6d-b3eb-ef9492d33935" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
