<SEC-DOCUMENT>0001209191-17-049113.txt : 20170816
<SEC-HEADER>0001209191-17-049113.hdr.sgml : 20170816
<ACCEPTANCE-DATETIME>20170816111235
ACCESSION NUMBER:		0001209191-17-049113
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170815
FILED AS OF DATE:		20170816
DATE AS OF CHANGE:		20170816

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Smail James R
		CENTRAL INDEX KEY:			0001384355

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35296
		FILM NUMBER:		171035636

	MAIL ADDRESS:	
		STREET 1:		112 W MARKET STREET
		CITY:			ORRVILLE
		STATE:			OH
		ZIP:			44667

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>2017-08-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001384355</rptOwnerCik>
            <rptOwnerName>Smail James R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>20 SOUTH BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2>PO BOX 555</rptOwnerStreet2>
            <rptOwnerCity>CANFIELD</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>44406-0555</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>2017-08-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>365017</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1662210</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares were acquired by the reporting person pursuant to the merger between Farmers National Banc Corp. (the &quot;Company&quot;), Monitor Bancorp, Inc. (&quot;Monitor&quot;), and FMNB Merger Subsidiary II, LLC (&quot;Merger Sub&quot;). Pursuant to the terms of the Merger Agreement, Monitor was merged with and into Merger Sub (the &quot;Merger&quot;) and immediately thereafter Merger Sub was dissolved and liquidated.  Each shareholder of Monitor was entitled to elect to receive consideration in cash or in common shares, without par value, of the Company (the &quot;Company Common Shares&quot;). The reporting person was a shareholder of Monitor and elected to receive Company Common Shares at a final stock exchange ratio of 54.7992 Company Common Shares for each share of Monitor owned by the reporting person.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Carl D. Culp, attorney in fact for James R. Smail</signatureName>
        <signatureDate>2017-08-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
