Scarborough Southwest (French: Scarborough-Sud-Ouest; formerly Scarborough West) is a federal electoral district in Toronto, Ontario, Canada, that has been represented in the House of Commons of Canada since 1968.

It covers the southwestern part of the Scarborough part of Toronto. It stretches from Lake Ontario in the south to Eglinton Avenue in the north.

It consists of the part of the City of Toronto bounded on the west by Victoria Park Avenue, on the south by Lake Ontario, on the north by Eglinton Avenue and on the east by Markham Road.

The riding includes the neighbourhoods of Birch Cliff, Oakridge, Cliffside, Kennedy Park, Clairlea, Cliffcrest and parts of Scarborough Village and the Golden Mile.

1966 to 1976

1976 to 1987

1987 to 1996

1996 to 2003

2003 to 2013

Scarborough West riding was created in 1966 and from parts of Danforth and York—Scarborough ridings.

It initially consisted of the part of the borough of Scarborough west of a line formed by Midland Avenue the Canadian National Railway line and Brimley Road and south of Eglinton Avenue. It also included the part of the city west of Birchmount Road and south of Lawrence Avenue East.

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