-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VAh6m4+b1kjmyuLOMqiKdRLtQS2wQJ7AVQckSEfy8YDBwgdZC8lHDcLqM2MqxUlk
 tTSHTeQXF9XTLSU3zrfNEw==

<SEC-DOCUMENT>0000891839-06-000045.txt : 20060605
<SEC-HEADER>0000891839-06-000045.hdr.sgml : 20060605
<ACCEPTANCE-DATETIME>20060605175852
ACCESSION NUMBER:		0000891839-06-000045
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060601
FILED AS OF DATE:		20060605
DATE AS OF CHANGE:		20060605

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GRAHAM CORP
		CENTRAL INDEX KEY:			0000716314
		STANDARD INDUSTRIAL CLASSIFICATION:	GENERAL INDUSTRIAL MACHINERY & EQUIPMENT [3560]
		IRS NUMBER:				161194720
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		20 FLORENCE AVE
		STREET 2:		POST OFFICE BOX 719
		CITY:			BATAVIA
		STATE:			NY
		ZIP:			14020
		BUSINESS PHONE:		5853432216

	MAIL ADDRESS:	
		STREET 1:		20 FLORENCE AVENUE
		STREET 2:		POST OFFICE BOX 719
		CITY:			BATAVIA
		STATE:			NY
		ZIP:			14021-0719

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LINES JAMES R
		CENTRAL INDEX KEY:			0001249710

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08462
		FILM NUMBER:		06887330

	BUSINESS ADDRESS:	
		STREET 1:		11 HILLSIDE PARKWAY
		CITY:			LANCASTER
		STATE:			NY
		ZIP:			14068
		BUSINESS PHONE:		5853432216

	MAIL ADDRESS:	
		STREET 1:		11 HILLSIDE PARKWY
		CITY:			LANCSTER
		STATE:			NY
		ZIP:			14068
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-06-01</periodOfReport>

    <issuer>
        <issuerCik>0000716314</issuerCik>
        <issuerName>GRAHAM CORP</issuerName>
        <issuerTradingSymbol>GHM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249710</rptOwnerCik>
            <rptOwnerName>LINES JAMES R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GRAHAM CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>20 FLORENCE AVENUE</rptOwnerStreet2>
            <rptOwnerCity>BATAVIA</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>14020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP and General Manager</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2228</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>19.94</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-06-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6000</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-06-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6000</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares held by the trustee of the Graham Corporation Employee Stock Ownership Plan and allocated to Mr. Lines's account, as to which Mr. Lines has sole voting power but no dispositive power, except in limited circumstances.</footnote>
        <footnote id="F2">This option was granted under the 2000 Graham Corporation Incentive Plan to Increase Shareholder Value in a transaction exempt under Rule 16b-3 and will be exercisable pro rata on the first, second, third and fourth anniversaries of the grant date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ James R. Lines</signatureName>
        <signatureDate>2006-06-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
