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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2022-08-17</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000703604</issuerCik>
        <issuerName>Distribution Solutions Group, Inc.</issuerName>
        <issuerTradingSymbol>DSGR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001922371</rptOwnerCik>
            <rptOwnerName>Frazee Russ</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8770 W. BRYN MAWR AVE. SUITE 900</rptOwnerStreet1>
            <rptOwnerStreet2>C/O DISTRIBUTION SOLUTIONS GROUP, INC.</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>See Remarks</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Chief Executive Officer, TestEquity Acquisition, LLC, a wholly owned subsidiary of the Issuer Distribution Solutions Group, Inc.</remarks>

    <ownerSignature>
        <signatureName>/s/ Rick Pufpaf, Attorney-In-Fact for Russ Frazee</signatureName>
        <signatureDate>2022-08-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
