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    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0000893818</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
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        <classId>C000101158</classId>
        <classId>C000101159</classId>
        <classId>C000201976</classId>
        <classId>C000101160</classId>
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    </filerInfo>
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      <regFileNumber>811-07332</regFileNumber>
      <regCik>0000893818</regCik>
      <regLei>5493008LW2651I1QB503</regLei>
      <regStreet1>100 Bellevue Parkway</regStreet1>
      <regCity>Wilmington</regCity>
      <regStateConditional regCountry="US" regState="US-DE"/>
      <regZipOrPostalCode>19809</regZipOrPostalCode>
      <regPhone>800-441-7762</regPhone>
      <seriesName>BlackRock LifePath Index 2055 Fund</seriesName>
      <seriesId>S000032783</seriesId>
      <seriesLei>549300JL6UJDSXPBK310</seriesLei>
      <repPdEnd>2025-12-31</repPdEnd>
      <repPdDate>2025-06-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
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      <totLiabs>1585275.17</totLiabs>
      <netAssets>7048717488.43</netAssets>
      <assetsAttrMiscSec>0.00000000</assetsAttrMiscSec>
      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.00000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.00000000</amtPayOneYrOthAffil>
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      <amtPayAftOneYrBanksBorr>0.00000000</amtPayAftOneYrBanksBorr>
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      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
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      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
      <cshNotRptdInCorD>0.00000000</cshNotRptdInCorD>
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        <monthlyTotReturns>
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          <monthlyTotReturn classId="C000101159" rtn1="0.55000000" rtn2="5.52000000" rtn3="4.64000000"/>
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        </monthlyTotReturns>
        <othMon1 netRealizedGain="-4252389.30000000" netUnrealizedAppr="38352931.82000000"/>
        <othMon2 netRealizedGain="-5284556.49000000" netUnrealizedAppr="357457351.38000000"/>
        <othMon3 netRealizedGain="84846.47000000" netUnrealizedAppr="270848850.96000000"/>
      </returnInfo>
      <mon1Flow redemption="125145267.04000000" reinvestment="0.00000000" sales="110546165.02000000"/>
      <mon2Flow redemption="91766588.42000000" reinvestment="0.00000000" sales="114742978.89000000"/>
      <mon3Flow redemption="93189650.36000000" reinvestment="0.00000000" sales="110447319.69000000"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>BLACKROCK CASH FUNDS TREASURY SL AGENCY SHARES</name>
        <lei>5493008LW2651I1QB503</lei>
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        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6355640.59000000</valUSD>
        <pctVal>0.090167333283</pctVal>
        <payoffProfile>Long</payoffProfile>
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        <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>BlackRock Funds III</name>
        <lei>5493008LW2651I1QB503</lei>
        <title>BlackRock Cash Funds: Institutional, SL Agency Shares</title>
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        <identifiers>
          <isin value="US0669225197"/>
        </identifiers>
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        <curCd>USD</curCd>
        <valUSD>462620.03000000</valUSD>
        <pctVal>0.006563180192</pctVal>
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        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="462620.03000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SMALL CAP LIFEPATH</name>
        <lei>N/A</lei>
        <title>SMALL CAP LIFEPATH MUTUAL FUND</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="BlackRock Identifier" value="BRSC7UH02"/>
        </identifiers>
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        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>276720336.78000000</valUSD>
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        <fairValLevel>N/A</fairValLevel>
        <securityLending>
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          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core MSCI Total International Stock ETF</name>
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        <curCd>USD</curCd>
        <valUSD>2643831067.59000000</valUSD>
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        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <loanByFundCondition isLoanByFund="Y" loanVal="456129.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>RUSSEL 1000 LIFEPATH</name>
        <lei>N/A</lei>
        <title>RUSSEL 1000 LIFEPATH MUTUAL FUND</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="BlackRock Identifier" value="BRSC7UGQ6"/>
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        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3938127426.59000000</valUSD>
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        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>N/A</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>iShares FTSE NAREIT All Equity REITs Index Fund</name>
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        <curCd>USD</curCd>
        <valUSD>79337047.12000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares US Long Credit Bond Index Fund/BlackRock</name>
        <lei>549300KVJ2QNPSCQ7553</lei>
        <title>iShares US Long Credit Bond Index Fund/BlackRock</title>
        <cusip>09260J625</cusip>
        <identifiers>
          <isin value="US09260J6257"/>
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        <balance>11551817.33000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>104197392.31000000</valUSD>
        <pctVal>1.478246113296</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>
    <explntrNotes>

      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>




    </explntrNotes>
    <signature>
      <ncom:dateSigned>2025-07-31</ncom:dateSigned>
      <ncom:nameOfApplicant>BlackRock Funds III</ncom:nameOfApplicant>
      <ncom:signature>Chuck Pulsfort</ncom:signature>
      <ncom:signerName>Chuck Pulsfort</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
