Several plans have been proposed for high-speed rail in Canada, the only G7 country that does not have any high-speed rail. In the press and popular discussion, there have been two routes frequently proposed as suitable for a high-speed rail corridor: Edmonton to Calgary via Red Deer and Windsor to Quebec City via London, Kitchener-Waterloo, Toronto, Ottawa and Montreal.

The Calgary–Edmonton Corridor is a geographical region of the Canadian province of Alberta. It is the most urbanized area in Alberta and is one of Canada's four most populated urban regions. It consists of Statistics Canada Alberta census divisions No. 11, No. 8, and No. 6. Measured from north to south, the region covers a distance of approximately 400 km (250 mi). As of the designations in the Canada 2021 Census of census metropolitan areas (CMAs) and census agglomerations (CAs) in Alberta, the corridor includes three of the province's four CMAs and two CAs, in addition to four other CAs already included in the Calgary and Edmonton CMAs.