<SEC-DOCUMENT>0001209191-18-045475.txt : 20180806
<SEC-HEADER>0001209191-18-045475.hdr.sgml : 20180806
<ACCEPTANCE-DATETIME>20180806125334
ACCESSION NUMBER:		0001209191-18-045475
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180801
FILED AS OF DATE:		20180806
DATE AS OF CHANGE:		20180806

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Moore Terry A
		CENTRAL INDEX KEY:			0001606590

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35296
		FILM NUMBER:		18994167

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		330-747-1572

	MAIL ADDRESS:	
		STREET 1:		20 SOUTH BROAD STREET
		STREET 2:		PO BOX 555
		CITY:			CANFIELD
		STATE:			OH
		ZIP:			44406

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FARMERS NATIONAL BANC CORP /OH/
		CENTRAL INDEX KEY:			0000709337
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				341371693
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		20 S BROAD STREET
		STREET 2:		P O BOX 555
		CITY:			CANFIELD
		STATE:			OH
		ZIP:			44406
		BUSINESS PHONE:		3305333341
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-08-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000709337</issuerCik>
        <issuerName>FARMERS NATIONAL BANC CORP /OH/</issuerName>
        <issuerTradingSymbol>FMNB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001606590</rptOwnerCik>
            <rptOwnerName>Moore Terry A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>20 SOUTH BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2>PO BOX 555</rptOwnerStreet2>
            <rptOwnerCity>CANFIELD</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>44406</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Farmers National Banc Corp. Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-08-01</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2018-08-06</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>260</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25638</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Farmers National Banc Corp. Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6700</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401k Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Farmers National Banc Corp. Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3562.5</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Terry A Moore, Trustee for Virginia Ann Watterson Irr Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares acquired pursuant to the terms of the Farmers National Banc Corp. Share Ownership Plan.</footnote>
        <footnote id="F2">In prior reports, all shares owned by the Trust, of which Reporting Person is a Trustee and family member is one of several beneficiaries, were reported as beneficially owned by the Reporting Person.  For this, and future reports, Reporting Person is limiting reporting only to his family member's pecuniary interest in the shares held by the Trust and the Reporting Person disclaims beneficial ownership of shares held by the Trust except to the extent of his pecuniary interest therein</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Carl D. Culp, attorney in fact for Terry A. Moore</signatureName>
        <signatureDate>2018-08-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
