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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e26f6-1a97-7f78-99e3-1cecc75ce579,g:8fc48d0f-39b2-4259-84ea-f17a1bd3ca9b-->
<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.aosmith.com/role/CoverPage" xlink:type="simple" xlink:href="aos-20260730.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.aosmith.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e26f6-1a97-70e0-bdbb-c7e613f57c2f" 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_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_DocumentType_019e26f6-1a97-70e0-bdbb-c7e613f57c2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e26f6-1a97-7217-8e08-b0a291169ba5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_DocumentPeriodEndDate_019e26f6-1a97-7217-8e08-b0a291169ba5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e26f6-1a97-75a9-987f-92bfb1f1ed69" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityRegistrantName_019e26f6-1a97-75a9-987f-92bfb1f1ed69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e26f6-1a97-7006-8f0b-3d2e022b52f5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e26f6-1a97-7006-8f0b-3d2e022b52f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e26f6-1a97-7a0d-838d-ef5fe0624255" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityFileNumber_019e26f6-1a97-7a0d-838d-ef5fe0624255" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e26f6-1a97-70db-be02-7f6350171517" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e26f6-1a97-70db-be02-7f6350171517" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e26f6-1a97-7f85-97b3-3ed509d03f5c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityAddressAddressLine1_019e26f6-1a97-7f85-97b3-3ed509d03f5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e26f6-1a97-7ec7-a4c0-2fd999646974" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityAddressCityOrTown_019e26f6-1a97-7ec7-a4c0-2fd999646974" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e26f6-1a97-7f1e-827f-ede59c148637" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityAddressStateOrProvince_019e26f6-1a97-7f1e-827f-ede59c148637" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e26f6-1a97-7a5d-9bab-3925478c5a79" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityAddressPostalZipCode_019e26f6-1a97-7a5d-9bab-3925478c5a79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e26f6-1a97-7ca4-83dc-ab23f2c1164c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_CityAreaCode_019e26f6-1a97-7ca4-83dc-ab23f2c1164c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e26f6-1a97-717c-9009-a92510284f13" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_LocalPhoneNumber_019e26f6-1a97-717c-9009-a92510284f13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e26f6-1a97-71a6-8992-274c11816b07" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_WrittenCommunications_019e26f6-1a97-71a6-8992-274c11816b07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e26f6-1a97-7bf7-b5f9-829994fd1b1b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_SolicitingMaterial_019e26f6-1a97-7bf7-b5f9-829994fd1b1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e26f6-1a97-7df8-9b12-659f7f6e38b1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_PreCommencementTenderOffer_019e26f6-1a97-7df8-9b12-659f7f6e38b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e26f6-1a97-7260-9862-7d9308935b50" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e26f6-1a97-7260-9862-7d9308935b50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e26f6-1a97-7ef6-97b4-d25715b831fc" 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_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_Security12bTitle_019e26f6-1a97-7ef6-97b4-d25715b831fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e26f6-1a97-766c-8d32-e257324ae14e" 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_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_TradingSymbol_019e26f6-1a97-766c-8d32-e257324ae14e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e26f6-1a97-73d7-bb56-3688b665e5f2" 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_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_SecurityExchangeName_019e26f6-1a97-73d7-bb56-3688b665e5f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e26f6-1a97-7a0b-bbf9-8fb981d366ef" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e26f6-1a97-7a0b-bbf9-8fb981d366ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e26f6-1a97-7dbb-916c-68a8760e319e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_EntityCentralIndexKey_019e26f6-1a97-7dbb-916c-68a8760e319e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e26f6-1a97-7609-aeb4-ad31ea433fd9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e26f6-1a97-75bc-9deb-4b272a6bf2a3" xlink:to="loc_dei_AmendmentFlag_019e26f6-1a97-7609-aeb4-ad31ea433fd9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
