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  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0000831114</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000077176</seriesId>
        <classId>C000271378</classId>
        <classId>C000237346</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>RBB Fund, Inc.</regName>
      <regFileNumber>811-05518</regFileNumber>
      <regCik>0000831114</regCik>
      <regLei>5493005KKD0GVHSW0D29</regLei>
      <regStreet1>615 East Michigan Street</regStreet1>
      <regCity>Milwaukee</regCity>
      <regStateConditional regCountry="US" regState="US-WI"/>
      <regZipOrPostalCode>53202</regZipOrPostalCode>
      <regPhone>262-378-6278</regPhone>
      <seriesName>F/m US Treasury 3 Month Bill Fund</seriesName>
      <seriesId>S000077176</seriesId>
      <seriesLei>549300KRKRLYQRNPKC82</seriesLei>
      <repPdEnd>2026-08-31</repPdEnd>
      <repPdDate>2026-02-28</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>6428224283.290000000000</totAssets>
      <totLiabs>30955502.140000000000</totLiabs>
      <netAssets>6397268781.150000000000</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>
      <curMetrics>
        <curMetric>
          <curCd>USD</curCd>
          <intrstRtRiskdv01 period10Yr="0.000000000000" period1Yr="0.000000000000" period30Yr="0.000000000000" period3Mon="156154.130000000000" period5Yr="0.000000000000"/>
          <intrstRtRiskdv100 period10Yr="0.000000000000" period1Yr="0.000000000000" period30Yr="0.000000000000" period3Mon="15615413.000000000000" period5Yr="0.000000000000"/>
        </curMetric>
      </curMetrics>
      <creditSprdRiskInvstGrade period10Yr="0.000000000000" period1Yr="0.000000000000" period30Yr="0.000000000000" period3Mon="154803.707303000000" period5Yr="0.000000000000"/>
      <creditSprdRiskNonInvstGrade period10Yr="0.000000000000" period1Yr="0.000000000000" period30Yr="0.000000000000" period3Mon="0.000000000000" period5Yr="0.000000000000"/>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000237346" rtn1=".360000000000" rtn2=".290000000000" rtn3=".270000000000"/>
          <monthlyTotReturn classId="C000271378" rtn1="N/A" rtn2="N/A" rtn3=".180000000000"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="2761981.920000000000" netUnrealizedAppr="783909.200000000000"/>
        <othMon2 netRealizedGain="-428427.850000000000" netUnrealizedAppr="-564676.990000000000"/>
        <othMon3 netRealizedGain="-365420.190000000000" netUnrealizedAppr="43439.400000000000"/>
      </returnInfo>
      <mon1Flow redemption="6396139313.000000000000" reinvestment=".000000000000" sales="6369563021.000000000000"/>
      <mon2Flow redemption="100377706.000000000000" reinvestment=".000000000000" sales="82356780.000000000000"/>
      <mon3Flow redemption="49927785.000000000000" reinvestment="300.740000000000" sales="160790427.000000000000"/>



      <varInfo>

        <fundsDesignatedInfo>
          <nameDesignatedIndex>N/A</nameDesignatedIndex>
          <indexIdentifier>N/A</indexIdentifier>

        </fundsDesignatedInfo>

      </varInfo>
    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>U.S. Bank Money Market Deposit Account</name>
        <lei>N/A</lei>
        <title>U.S. Bank Money Market Deposit Account</title>
        <cusip>8AMMF0A92</cusip>
        <identifiers>
          <ticker value="USBFS04"/>
        </identifiers>
        <balance>20121709.840000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20121709.840000000000</valUSD>
        <pctVal>0.3145359454</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</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>TREASURY BILL</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>United States Treasury Bill</title>
        <cusip>912797SW8</cusip>
        <identifiers>
          <isin value="US912797SW88"/>
        </identifiers>
        <balance>6452650000.000000000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6396847409.240000000000</valUSD>
        <pctVal>99.9934132530</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <debtSec>
          <maturityDt>2026-05-28</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>.000000000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2026-04-27</ncom:dateSigned>
      <ncom:nameOfApplicant>RBB Fund, Inc.</ncom:nameOfApplicant>
      <ncom:signature>/s/ James G. Shaw</ncom:signature>
      <ncom:signerName>RBB Fund, Inc.</ncom:signerName>
      <ncom:title>CFO COO Secretary</ncom:title>
    </signature>
  </formData>
</edgarSubmission>