<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-01-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0002035149</issuerCik>
        <issuerName>Flowco Holdings Inc.</issuerName>
        <issuerTradingSymbol>FLOC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002049797</rptOwnerCik>
            <rptOwnerName>Roberts Chad</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O FLOWCO HOLDINGS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1300 POST OAK BLVD., SUITE 450</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77056</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>true</isOfficer>
            <officerTitle>EVP, Production Solutions</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>LLC Interests</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>918016</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents Common Units of Flowco MergeCo LLC (the &quot;Common Units&quot;).  Each Common Unit will be paired with one share of Class B common stock of the Issuer (&quot;Class B Common Stock&quot;, and together with the paired Common Unit, the &quot;Paired Interest&quot;).  Pursuant to a Second Amended and Restated Limited Liability Company Agreement of Flowco MergeCo LLC (the &quot;Restated LLC Agreement&quot;), which will be entered into pursuant to the Master Reorganization Agreement in connection with the closing of the IPO, (i) all then-existing and outstanding limited liability company interests in Flowco MergeCo LLC will be recapitalized into Common Units and (ii) each Paired Interest will be exchangeable into one share of Class A Common Stock (or at the Issuer's election, cash based on the redemption rate set forth in the Restated LLC Agreement and the value of the Class A Common Stock at the time of the exchange), subject to the terms of the Restated LLC Agreement. [continues in footnote 2]</footnote>
        <footnote id="F2">[continued from footnote 1] Upon an exchange of the Paired Interests for Class A Common Stock, the corresponding number of shares of Class B Common Stock, which entitle its holder to one vote per share on all matters presented to the Issuer's stockholders, generally will be cancelled.</footnote>
    </footnotes>

    <remarks>Exhibit List: Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Joel Lambert, attorney-in-fact</signatureName>
        <signatureDate>2025-01-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
