Bruce South was a federal electoral district in Ontario, Canada, that was represented in the House of Commons of Canada from 1867 to 1882 and from 1903 to 1935.
Elgin East was a federal electoral district represented in the House of Commons of Canada from 1867 to 1925. It was located in the province of Ontario. It was created by the British North America Act of 1867 which divided the county of Elgin into two ridings: Elgin East and Elgin West based on a traditional division.
Haldimand was a federal electoral district in the province of Ontario, Canada, that was represented in the House of Commons of Canada from 1867 to 1892 and from 1904 to 1953. It was created by the British North America Act of 1867.
Huron South was a federal electoral district in Ontario, Canada, that was represented in the House of Commons of Canada from 1867 to 1935. It was created by the British North America Act of 1867 which divided the County of Huron into two ridings: Huron North and Huron South.
Kent was a federal electoral district (riding) represented in the House of Commons of Canada from 1867 to 1904, 1917 to 1968, and 1979 to 1997. It was located in the province of Ontario and was created by the British North America Act of 1867.
Norfolk South was a federal electoral district represented in the House of Commons of Canada from 1867 to 1904. It was located in the province of Ontario. It was created by the British North America Act of 1867 which divided the county of Norfolk into two ridings. The South Riding consisted of the Townships of Charlotteville, Houghton, Walsingham, and Woodhouse and the Woodhouse Gore.
Ontario North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1925. It was located in the province of Ontario. It was created by the British North America Act of 1867.
Oxford North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1935. It was located in the province of Ontario. It was created by the British North America Act of 1867.
Oxford South was a federal electoral district represented in the House of Commons of Canada from 1867 to 1935. It was located in the province of Ontario. It was created by the British North America Act of 1867.
Perth South was a federal electoral district represented in the House of Commons of Canada from 1867 to 1935. It was located in the province of Ontario. It was created by the British North America Act of 1867, which divided the County of Perth into two ridings. The South Riding of the County of Perth initially consisted of the Townships of Blanchard, Downie, South Easthope, Fullarton, Hibbert, and the Villages of Mitchell and St. Marys.
Peterborough West was a federal electoral district represented in the House of Commons of Canada from 1867 to 1953. It was located in the province of Ontario. It was created by the British North America Act of 1867 which divided the County of Peterborough was into two ridings. The West Riding consisted of the Townships of South Monaghan, North Monaghan, Smith, and Ennismore, and the Town of Peterborough.
Renfrew North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1979. It was located in the province of Ontario. It was created by the British North America Act of 1867. The riding existed until 1972, when the name was changed to "Renfrew North—Nipissing East".
Renfrew South was a federal riding represented in the House of Commons of Canada from 1867 to 1968. It was located in the province of Ontario. The federal riding was created by the British North America Act of 1867 and was abolished in 1966, with the riding being apportioned into Frontenac—Lennox and Addington, Lanark and Renfrew, and Renfrew North.
Simcoe South was a federal electoral district represented in the House of Commons of Canada from 1867 to 1925, and from 1979 to 1988. It was located north of Toronto in the province of Ontario. It was initially created by the British North America Act of 1867 when the County of Simcoe was divided into two ridings, to be called the South and North Ridings in the Legislative Assembly of the Province of Canada.
Waterloo North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1968. It was located in the province of Ontario. It was created by the British North America Act of 1867 which entitled each of north and south ridings of the County of Waterloo to elect one Member of Parliament.
Waterloo South was a federal electoral district and a provincial electoral district in Canada.
Wellington South was a Canadian federal electoral district represented in the House of Commons of Canada from 1867 to 1968. It was located in the province of Ontario. It was created by the British North America Act of 1867 as the "South Riding of the county of Wellington". The County of Wellington was divided into three ridings: the North, South and Centre Ridings".
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.
Ontario was a federal electoral district represented in the House of Commons of Canada from 1925 to 1997. It was located in the province of Ontario. This riding was created in 1924 from Ontario South riding.
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.
Ontario electoral district 