<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0001293210</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000005390</seriesId>
        <classId>C000014670</classId>
        <classId>C000153102</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>American Century Asset Allocation Portfolios, Inc.</regName>
      <regFileNumber>811-21591</regFileNumber>
      <regCik>0001293210</regCik>
      <regLei>549300OXI8XBS1M19X06</regLei>
      <regStreet1>4500 Main St</regStreet1>
      <regCity>Kansas City</regCity>
      <regStateConditional regCountry="US" regState="US-MO"/>
      <regZipOrPostalCode>64111</regZipOrPostalCode>
      <regPhone>816-531-5575</regPhone>
      <seriesName>One Choice Portfolio: Very Conservative</seriesName>
      <seriesId>S000005390</seriesId>
      <seriesLei>549300TDWS32DMT5K777</seriesLei>
      <repPdEnd>2025-07-31</repPdEnd>
      <repPdDate>2025-04-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>366659492.830000000000</totAssets>
      <totLiabs>585.040000000000</totLiabs>
      <netAssets>366658907.790000000000</netAssets>
      <assetsAttrMiscSec>0.000000000000</assetsAttrMiscSec>
      <assetsInvested>0.000000000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.000000000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.000000000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.000000000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.000000000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.000000000000</amtPayAftOneYrBanksBorr>
      <amtPayAftOneYrCtrldComp>0.000000000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.000000000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.000000000000</amtPayAftOneYrOther>
      <delayDeliv>0.000000000000</delayDeliv>
      <standByCommit>0.000000000000</standByCommit>
      <liquidPref>0.000000000000</liquidPref>
      <cshNotRptdInCorD>0.000000000000</cshNotRptdInCorD>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000014670" rtn1="0.859845227859" rtn2="-1.212124986100" rtn3="0.000000000000"/>
          <monthlyTotReturn classId="C000153102" rtn1="0.773195876289" rtn2="-1.244272165388" rtn3="0.000000000000"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="-445907.6400" netUnrealizedAppr="3177755.5400"/>
        <othMon2 netRealizedGain="-373421.2500" netUnrealizedAppr="-5224359.3200"/>
        <othMon3 netRealizedGain="-527896.1200" netUnrealizedAppr="-124810.1900"/>
      </returnInfo>
      <mon1Flow redemption="5826672.2" reinvestment="0" sales="1947027.94"/>
      <mon2Flow redemption="7845344.94" reinvestment="2127990.05" sales="5110017.8"/>
      <mon3Flow redemption="7962503.32" reinvestment="0" sales="3348488.89"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>American Century High Income Fund</name>
        <lei>N/A</lei>
        <title>HIGH INCOME FUND - INVESTOR CLASS</title>
        <cusip>024932170</cusip>
        <identifiers>
          <isin value="US0249321706"/>
          <ticker value="AHIVX"/>
        </identifiers>
        <balance>441637.2110000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3762749.0400000000</valUSD>
        <pctVal>1.0262259992</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Diversified Bond Fund</name>
        <lei>W0XXXFJP1KT9YQTPLU26</lei>
        <title>American Century Diversified Bond - Investor Class</title>
        <cusip>024932402</cusip>
        <identifiers>
          <isin value="US0249324023"/>
          <ticker value="ADFIX"/>
          <other otherDesc="SEDOL" value="B0BVNQ8"/>
        </identifiers>
        <balance>8305109.7850000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>76074805.6300000000</valUSD>
        <pctVal>20.7481133047</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Short Duration Fund</name>
        <lei>3VTVXMH1JRM312VF5K71</lei>
        <title>American Century Short Duration - Investor Class</title>
        <cusip>024932436</cusip>
        <identifiers>
          <isin value="US0249324361"/>
          <ticker value="ACSNX"/>
          <other otherDesc="SEDOL" value="B41Z067"/>
        </identifiers>
        <balance>4918260.1260000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48346497.0400000000</valUSD>
        <pctVal>13.1856873003</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Short Duration Inflation Protection Bond Fund</name>
        <lei>32BUGDDLPB55T5COV394</lei>
        <title>American Century Short Duration Inflation Protection Bond - Investor Class</title>
        <cusip>024932774</cusip>
        <identifiers>
          <isin value="US0249327745"/>
          <ticker value="APOIX"/>
          <other otherDesc="SEDOL" value="B0BPRH9"/>
        </identifiers>
        <balance>4577251.5550000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48564639.0000000000</valUSD>
        <pctVal>13.2451818211</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Mid Cap Value Fund</name>
        <lei>EJWSPPM3JS2TXIBHG537</lei>
        <title>American Century Mid Cap Value - Investor Class</title>
        <cusip>025076654</cusip>
        <identifiers>
          <isin value="US0250766542"/>
          <ticker value="ACMVX"/>
          <other otherDesc="SEDOL" value="B00NTT0"/>
        </identifiers>
        <balance>770992.9020000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>11757641.7600000000</valUSD>
        <pctVal>3.2066974265</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Focused Large Cap Value Fund</name>
        <lei>JE7YO7NR1CHX48R50V27</lei>
        <title>American Century Focused Large Cap Value - Investor Class</title>
        <cusip>025076795</cusip>
        <identifiers>
          <isin value="US0250767953"/>
          <ticker value="ALVIX"/>
          <other otherDesc="SEDOL" value="B6WCV57"/>
        </identifiers>
        <balance>2210806.8800000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>22461797.9000000000</valUSD>
        <pctVal>6.1260745131</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Real Estate Fund</name>
        <lei>HR05V1805OVZAZ8RY743</lei>
        <title>American Century Real Estate - Investor Class</title>
        <cusip>025076886</cusip>
        <identifiers>
          <isin value="US0250768860"/>
          <ticker value="REACX"/>
          <other otherDesc="SEDOL" value="B6WCVC4"/>
        </identifiers>
        <balance>282415.8050000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7410590.7200000000</valUSD>
        <pctVal>2.0211129643</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Inflation Adjusted Bond Fund</name>
        <lei>EHDCH7OW63U5SCJHI161</lei>
        <title>American Century Inflation-Adjusted - Investor Class</title>
        <cusip>025081704</cusip>
        <identifiers>
          <isin value="US0250817048"/>
          <ticker value="ACITX"/>
          <other otherDesc="SEDOL" value="B4W0FL1"/>
        </identifiers>
        <balance>3814877.5530000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>41124380.0200000000</valUSD>
        <pctVal>11.2159773420</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Emerging Markets Debt Fund</name>
        <lei>54930089U8LN76OW1Q27</lei>
        <title>American Century Emerging Markets Debt Fund - Investor Class</title>
        <cusip>025082835</cusip>
        <identifiers>
          <isin value="US0250828359"/>
          <ticker value="AEDVX"/>
          <other otherDesc="SEDOL" value="BPFJVK3"/>
        </identifiers>
        <balance>850171.1790000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7592028.6300000000</valUSD>
        <pctVal>2.0705970777</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Global Bond Fund</name>
        <lei>N/A</lei>
        <title>American Century Global Bond - Investor Class</title>
        <cusip>025082876</cusip>
        <identifiers>
          <isin value="US0250828763"/>
          <ticker value="AGBVX"/>
          <other otherDesc="SEDOL" value="B745DC2"/>
        </identifiers>
        <balance>6114985.6420000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>53261524.9400000000</valUSD>
        <pctVal>14.5261778204</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Growth Fund</name>
        <lei>N/A</lei>
        <title>American Century Growth - Investor Class</title>
        <cusip>025083106</cusip>
        <identifiers>
          <isin value="US0250831064"/>
          <ticker value="TWCGX"/>
          <other otherDesc="SEDOL" value="2425076"/>
        </identifiers>
        <balance>163130.7360000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8497480.0400000000</valUSD>
        <pctVal>2.3175435969</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Small Cap Growth Fund</name>
        <lei>Q68CQ4I0XKGZWJ8GYU12</lei>
        <title>American Century Small Cap Growth - Investor Class</title>
        <cusip>025083338</cusip>
        <identifiers>
          <isin value="US0250833383"/>
          <ticker value="ANOIX"/>
          <other otherDesc="SEDOL" value="B6WCVF7"/>
        </identifiers>
        <balance>126296.4100000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2448887.3900000000</valUSD>
        <pctVal>0.6678925121</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Select Fund</name>
        <lei>YBV2RHBLCMLT5C6UGK81</lei>
        <title>American Century Select Fund</title>
        <cusip>025083502</cusip>
        <identifiers>
          <isin value="US0250835024"/>
          <ticker value="TWCIX"/>
          <other otherDesc="SEDOL" value="2908384"/>
        </identifiers>
        <balance>23050.6250000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2525887.4900000000</valUSD>
        <pctVal>0.6888929837</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Heritage Fund</name>
        <lei>YRIFZJY5F41ZG438VU07</lei>
        <title>American Century Heritage - Investor Class</title>
        <cusip>025083791</cusip>
        <identifiers>
          <isin value="US0250837913"/>
          <ticker value="TWHIX"/>
          <other otherDesc="SEDOL" value="B6WCVJ1"/>
        </identifiers>
        <balance>353442.8540000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7970136.3600000000</valUSD>
        <pctVal>2.1737195499</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Small Cap Dividend Fund</name>
        <lei>549300AHNV0HOM50BA22</lei>
        <title>American Century Small Cap Dividend Fund</title>
        <cusip>02508F679</cusip>
        <identifiers>
          <isin value="US02508F6795"/>
          <ticker value="AMAEX"/>
        </identifiers>
        <balance>262097.7180000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2510896.1400000000</valUSD>
        <pctVal>0.6848043472</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Large Cap Equity Fund</name>
        <lei>90UIHXL6GP381WUEP655</lei>
        <title>American Century Large Cap Equity - Investor Class</title>
        <cusip>02508H600</cusip>
        <identifiers>
          <isin value="US02508H6009"/>
          <ticker value="AFDIX"/>
          <other otherDesc="SEDOL" value="B6WCVT1"/>
        </identifiers>
        <balance>448914.3420000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>21844171.8800000000</valUSD>
        <pctVal>5.9576274886</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2025-06-26</ncom:dateSigned>
      <ncom:nameOfApplicant>American Century Asset Allocation Portfolios, Inc.</ncom:nameOfApplicant>
      <ncom:signature>Amy R. Bitter</ncom:signature>
      <ncom:signerName>Amy R. Bitter</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
