Mercier was a federal electoral district in Quebec, Canada, that was represented in the House of Commons of Canada from 1935 to 2004. In 2003, the district was abolished and split into the La Pointe-de-l'Île and Honoré-Mercier ridings. A provincial electoral district still exists under the same name but is located in Plateau Mont-Royal borough.
York Centre is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada from 1904 to 1917 and since 1953.
Scarborough Southwest is a federal electoral district in Toronto, Ontario, Canada, that has been represented in the House of Commons of Canada since 1968.
Scarborough—Rouge River was a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada between 1988 and 2015. However, as of the Fall 2015 federal election, part of this riding has been combined with the south-western part of the old riding Pickering—Scarborough East.
Don Valley East is a federal electoral district in Ontario, Canada that covers the northeast section of the North York part of Toronto. The federal riding was created in 1976 from parts of Willowdale, York East, York North, and York—Scarborough ridings.
Scarborough Centre is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 1979.
Scarborough—Agincourt is a federal electoral district in Toronto, Ontario, Canada that has been represented in the House of Commons of Canada since 1988. It covers the area of the City of Toronto bounded by Steeles Avenue East to the north, Highway 401 to the south, Victoria Park Avenue to the west, and Midland Avenue to the east.
Willowdale is a federal electoral district in Toronto, Ontario, Canada. It has been represented in the House of Commons of Canada since 1979. It is the riding with the biggest Korean community in Canada. As per the 2021 census, 9.9% of the population of Willowdale is Korean.
York—Simcoe is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada from 1968 to 1979, from 1988 to 1997 and since 2004.
Pickering—Scarborough East was a federal electoral district in Ontario, Canada, that had been represented in the House of Commons of Canada from 2004 to 2015.
Edmonton East was a federal electoral district in Alberta, Canada, that was represented in the House of Commons of Canada from 1917 to 2015.
York East was a federal electoral district represented in the House of Commons of Canada at different times. It was located in the province of Ontario.
Northumberland was a federal and provincial electoral district in Ontario, Canada, that was represented in the House of Commons of Canada from 1917 to 1968 and from 1987 to 2003, ad in the Legislative Assembly of Ontario from 1999 to 2007.
Kootenay East was a federal electoral district in British Columbia, Canada, that was represented in the House of Commons of Canada from 1917 to 1968 and from 1979 to 1997.
Broadview was a federal electoral district in Ontario, Canada, that was represented in the House of Commons of Canada from 1935 to 1979. This riding was created in 1933 from parts of Toronto East and Toronto—Scarborough ridings.
York—Scarborough was a federal electoral district represented in the House of Commons of Canada from 1953 to 1988. It was located in the province of Ontario. In the twelve general elections held during York—Scarborough's existence, the party that won here also won the election.
Don Valley was a federal electoral district of the House of Commons of Canada from 1968 to 1979. It was located in the province of Ontario. This riding was created in 1966 from parts of Eglinton, York East and York—Scarborough ridings.
Waterloo is the name of a federal electoral district in the Waterloo Region of Ontario, Canada, that has been used in the House of Commons of Canada from since 1968. Between 1997 and 2015, the riding was known as Kitchener—Waterloo.
Danforth was a federal electoral district represented in the House of Commons of Canada from 1935 to 1968. It was located in the province of Ontario.
New Westminster was the name, or part of the name, of several Canadian federal and provincial electoral districts. All provincial and federal ridings in the area of the Lower Mainland were part of the original New Westminster ridings. "Offspring" ridings are indicated accordingly.
Ontario electoral district 
