Simcoe—Grey is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 1997. It was created in 1996 from parts of Barrie—Simcoe—Bradford, Bruce—Grey, Simcoe Centre, Simcoe North, Wellington—Grey—Dufferin—Simcoe and York—Simcoe. It consists of the municipalities of Blue Mountains, Collingwood, Clearview, Wasaga Beach, Springwater, Essa, New Tecumseth and Adjala-Tosorontio. It had a population of 117,505 in 2001, and an area of 2,515 km².