<SEC-DOCUMENT>0000814133-18-000015.txt : 20180214
<SEC-HEADER>0000814133-18-000015.hdr.sgml : 20180214
<ACCEPTANCE-DATETIME>20180214144807
ACCESSION NUMBER:		0000814133-18-000015
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180214
DATE AS OF CHANGE:		20180214

SUBJECT COMPANY:	

	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:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-58085
		FILM NUMBER:		18611210

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WASATCH ADVISORS INC
		CENTRAL INDEX KEY:			0000814133
		IRS NUMBER:				870319391
		STATE OF INCORPORATION:			UT
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		505 WAKARA WAY
		STREET 2:		3RD FLOOR
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84108
		BUSINESS PHONE:		8015330777

	MAIL ADDRESS:	
		STREET 1:		505 WAKARA WAY
		STREET 2:		3RD FLOOR
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84108
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>wcc218.txt
<TEXT>
SCHEDULE 13G
Amendment No.
Name of Issuer: WESCO International Inc.
Title of Class of Securities: Common Stock
CUSIP Number: 95082P105
Item 1: Reporting Person: Wasatch Advisors, Inc. 87-0319391
Item 2: Check Box If Member of Group: Not Applicable
Item 3: SEC Use
Item 4: Place of Organization: Utah
Items 5-8: Number of Shares Owned With:
Item 5: Sole Voting Power: 2,444,215
Item 6: Shared Voting Power: 0
Item 7: Sole Dispositive Power: 2,444,215
Item 8: Shared Dispositive Power: 0
Item 9: Aggregate Amount Owned: 2,444,215
Item 10: Check Box If Aggregate Amount Excludes Certain Shares: N/A
Item 11: Percent of Class Owned: 5.2%
Item 12: Type of Reporting Person: IA

Item 1(a): Name of Issuer: WESCO International Inc.
Item l(b): Address of Issuer:
225 West Station Square Drive, Ste 700, Pittsburgh, PA 15219
Item 2(a): Name of Person Filing: Wasatch Advisors, Inc.
Item 2(b): Address: 505 Wakara Way, Salt Lake City, UT 84108
Item 2(c): Citizenship: Not Applicable
Item 2(d): Title of Class of Securities: Common Stock
Item 2(e): CUSIP Number: 95082P105
Item 3(e): Investment Adviser registered under section 203 of the Investment
Advisers Act of 1940
Item 4(a): 	Amount Owned: 2,444,215
Item 4(b): 	Percent of Class Owned: 5.2%
Item 4(c)(i): Sole Voting Power: 2,444,215
Item 4(c)(ii): Shared Voting Power: 0
Item 4(c)(iii): Sole Dispositive Power: 2,444,215
Item 4(c)(iv): Shared Dispositive Power: 0
Item 5: Check Box If Ownership Is 5% or Less of Class: [ ]
Item 6. Ownership of More Than 5% on Behalf of Another Person: N/A
Item 7: Identification of Subsidiary: Not Applicable
Item 8: Identification of Members of Group: Not Applicable
Item 9: Notice of Dissolution of Group: Not Applicable
Item 10: Certification:
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect
of changing or influencing the control of the issuer of such securities and
were not acquired in connection with or as a participant in any transaction
having such purpose or effect.

SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct as of December 31, 2017.
Date: 02/14/18
Signature: /s/JB Taylor
Name/Title: JB Taylor/CEO
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>