Mississauga—Lakeshore is a provincial electoral district in Ontario, Canada.

It elects one member to the Legislative Assembly of Ontario.

[1] It includes the neighbourhoods of Cawthra, Sheridan Heights, Park Royal, Clarkson, Rattray Park Estates, Lorne Park, Lorne Park Estates, Port Credit, Applewood Acres, Lakeview and Orchard Heights.

In 2003, it was defined to consist of the part of the City of Mississauga lying southeast of a line drawn from northeast to southwest along the Queensway to the Credit River, west along the Credit River, and southwest along Dundas Street West to the southwestern city limit.

[needs update] Once one of the strongest bastions of PC support in the province (winning 61% of the vote as recently as 1999), and certainly in the Toronto area, Mississauga South provincially has become more and more Liberal in last election cycles.