<SEC-DOCUMENT>0001193125-19-105827-index.html : 20190415
<SEC-HEADER>0001193125-19-105827.hdr.sgml : 20190415
<ACCEPTANCE-DATETIME>20190415082402
ACCESSION NUMBER:		0001193125-19-105827
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20190415
DATE AS OF CHANGE:		20190415
EFFECTIVENESS DATE:		20190415

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESCO INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000929008
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-ELECTRICAL APPARATUS & EQUIPMENT, WIRING SUPPLIES [5063]
		IRS NUMBER:				251723342
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14989
		FILM NUMBER:		19747626

	BUSINESS ADDRESS:	
		STREET 1:		225 WEST STATION SQUARE DRIVE
		STREET 2:		STE 700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219
		BUSINESS PHONE:		4124542200

	MAIL ADDRESS:	
		STREET 1:		225 WEST STATION SQUARE DRIVE
		STREET 2:		STE 700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDW HOLDING CORP
		DATE OF NAME CHANGE:	19971217
</SEC-HEADER>
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Document 1 - file: d638251ddefa14a.htm

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<FILENAME>g638251img1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g638251img1.jpg

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<SEQUENCE>3
<FILENAME>g638251pc01a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g638251pc01a.jpg

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<SEQUENCE>4
<FILENAME>g638251stamp1_1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g638251stamp1_1.jpg

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<FILENAME>g638251stamp2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g638251stamp2.jpg

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<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g638251stamp3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g638251stamp3.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g638251stamp4.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g638251stamp4.jpg

</DOCUMENT>
</SEC-DOCUMENT>