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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-08-23</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001703785</issuerCik>
        <issuerName>Falcon Minerals Corp</issuerName>
        <issuerTradingSymbol>FLMN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001310347</rptOwnerCik>
            <rptOwnerName>Foley David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACKSTONE GROUP L.P.,</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Mr. Foley, an employee of The Blackstone Group L.P. (&quot;Blackstone&quot;) or one of its affiliates, is a member of the board of directors of the issuer. Certain affiliates of Blackstone have filed a separate Form 3 reporting securities of the issuer that they may be deemed to beneficially own. Mr. Foley disclaims beneficial ownership of any securities of the issuer that may be deemed to be beneficially owned by affiliates of Blackstone.</remarks>

    <ownerSignature>
        <signatureName>/s/ David I. Foley</signatureName>
        <signatureDate>2018-09-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
