-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EuFAio+EYWdhVfPI/NPqBMnocaTAt4Y6m+W9bSwgqVn0CRb4WjZ+JgK/pE06kElw
 ieVU9rmFeHqBeyX3xCgsJQ==

<SEC-DOCUMENT>0000891839-04-000010.txt : 20040113
<SEC-HEADER>0000891839-04-000010.hdr.sgml : 20040113
<ACCEPTANCE-DATETIME>20040113172525
ACCESSION NUMBER:		0000891839-04-000010
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040112
FILED AS OF DATE:		20040113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MARSHALL CHARLES N
		CENTRAL INDEX KEY:			0001241527

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31456
		FILM NUMBER:		04523440

	BUSINESS ADDRESS:	
		STREET 1:		1040 WEST SCHUYLKILL
		CITY:			POTTSTOWN
		STATE:			PA
		ZIP:			19465
		BUSINESS PHONE:		6103238631

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENESEE & WYOMING INC
		CENTRAL INDEX KEY:			0001012620
		STANDARD INDUSTRIAL CLASSIFICATION:	RAILROADS, LINE-HAUL OPERATING [4011]
		IRS NUMBER:				060984624
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		66 FIELD POINT ROAD
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		2036293722

	MAIL ADDRESS:	
		STREET 1:		66 FIELD POINT ROAD
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2004-01-12</periodOfReport>
    <issuer>
        <issuerCik>0001012620</issuerCik>
        <issuerName>GENESEE &amp; WYOMING INC</issuerName>
        <issuerTradingSymbol>GWR</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001241527</rptOwnerCik>
            <rptOwnerName>MARSHALL CHARLES N</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GENESEE &amp; WYOMING INC.</rptOwnerStreet1>
            <rptOwnerStreet2>66 FIELD POINT ROAD</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>President and COO</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Class A Common Stock, $.01 par value</value></securityTitle><transactionDate><value>2004-01-12</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>5625</value></transactionShares><transactionPricePerShare><value>3.7222</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>222346</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectO
wnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Class A Common Stock, $.01 par value</value></securityTitle><transactionDate><value>2004-01-12</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>16875</value></transactionShares><transactionPricePerShare><value>6.6667</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>239221</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTabl
e><derivativeTable><derivativeTransaction><securityTitle><value>Stock Option (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>3.7222</value></conversionOrExercisePrice><transactionDate><value>2004-01-12</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>5625</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-04-09</value></exerciseDate><expirationDate><value>2004-04-08</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock, $.01 par value</value></underlyingSecurityTitle><underlyingSecurityShares><value>5625</value><footnoteId id="F1"/></underlyingSecurityShares></underlyingSecurity><postTransac
tionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>Stock Option (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>6.6667</value></conversionOrExercisePrice><transactionDate><value>2004-01-12</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>16875</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F2"/></exerciseDate><expirationDate><value>2005-04-
13</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock, $.01 par value</value></underlyingSecurityTitle><underlyingSecurityShares><value>22500</value><footnoteId id="F2"/></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5625</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction><derivativeHolding><securityTitle><value>Stock Option (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>10.5833</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F3"/></exerciseDate><expirationDate><value>2006-04-05</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock, $.01 par value</value></underlyingSecurityTitle><underlyingSecurityShares><
value>22500</value><footnoteId id="F3"/></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>22500</value><footnoteId id="F3"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Option (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>21.35</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F4"/></exerciseDate><expirationDate><value>2007-05-22</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock, $.01 par value</value></underlyingSecurityTitle><underlyingSecurityShares><value>20000</value><footnoteId id="F4"/></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>20000</value><footnoteId id="
F4"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Option (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>22.41</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F5"/></exerciseDate><expirationDate><value>2008-07-30</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock, $.01 par value</value></underlyingSecurityTitle><underlyingSecurityShares><value>15000</value><footnoteId id="F5"/></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>15000</value><footnoteId id="F5"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></
natureOfOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">This option was previously reported by Mr. Marshall.</footnote><footnote id="F2">This option was previously reported by Mr. Marshall.  Mr. Marshall can exercise the option as follows: 5,625 shares on 4/14/01, 5,625 shares on 4/14/02, 5,625 shares on 4/14/03, and 5,625 shares on 4/14/04.</footnote><footnote id="F3">This option was previously reported by Mr. Marshall.  Mr. Marshall can exercise the option as follows: 5,625 shares on 4/6/02, 5,625 shares on 4/6/03, 5,625 shares on 4/6/04, and 5,625 shares on 4/6/05.</footnote><footnote id="F4">This option was previously reported by Mr. Marshall.  Mr. Marshall can exercise the option as follows: 5,000 shares on 5/23/03, 5,000 shares on 5/23/04, 5,000 shares on 5/23/05 and 5,000 shares on 5/23/06.</footnote><footnote id="F5">This option was previously reported by Mr. Marshall.  Mr. Marshall can exercise the option as follows: 3,750 shares on 7/31/04, 3,750 share
s on 7/31/05, 3,750 shares on 7/31/06 and 3,750 shares on 7/31/07.</footnote></footnotes><remarks/><ownerSignature><signatureName>Charles N. Marshall</signatureName><signatureDate>2004-01-13</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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