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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 ++3rdEW55rp/zp7g34uTYA==

<SEC-DOCUMENT>0001140361-09-014866.txt : 20090617
<SEC-HEADER>0001140361-09-014866.hdr.sgml : 20090617
<ACCEPTANCE-DATETIME>20090617163511
ACCESSION NUMBER:		0001140361-09-014866
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060811
FILED AS OF DATE:		20090617
DATE AS OF CHANGE:		20090617

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PICCIRILLO CHARLES
		CENTRAL INDEX KEY:			0001186833

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-16587
		FILM NUMBER:		09896854

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUMMIT FINANCIAL GROUP INC
		CENTRAL INDEX KEY:			0000811808
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				550672148
		STATE OF INCORPORATION:			WV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 NORTH MAIN ST
		CITY:			MOOREFIELD
		STATE:			WV
		ZIP:			26836
		BUSINESS PHONE:		3045301000

	MAIL ADDRESS:	
		STREET 1:		300 NORTH MAIN ST
		CITY:			MOOREFIELD
		STATE:			WV
		ZIP:			26836

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SOUTH BRANCH VALLEY BANCORP INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2006-08-11</periodOfReport>

    <dateOfOriginalSubmission>2006-08-11</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000811808</issuerCik>
        <issuerName>SUMMIT FINANCIAL GROUP INC</issuerName>
        <issuerTradingSymbol>SMMF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001186833</rptOwnerCik>
            <rptOwnerName>PICCIRILLO CHARLES</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 38</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MADISON</rptOwnerCity>
            <rptOwnerState>X1</rptOwnerState>
            <rptOwnerZipCode>25130</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-08-09</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>221</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>19.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20299</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The amount of securities acquired on the reporting person's original Form 4 was inadvertantly reported as 211 shares.  The correct amount of shares acquired was 221 shares.</footnote>
        <footnote id="F2">The amount of securities beneficially owned following the transaction now reflects 10 shares that were inadvertantly ommited from the reporting person's original Form 4 and also were inadvertantly omitted from six Forms 4 and one Form 5 filed by the reporting person after his original Form 4 was filed.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Teresa D. Ely, Lmtd POA Attorney-in-Fact</signatureName>
        <signatureDate>2009-06-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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