Thunder Bay—Superior North (French: Thunder Bay—Supérieur-Nord; formerly known as Thunder Bay—Nipigon) is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 1976. It is in the northwestern part of the province of Ontario. It was created in 1976 as "Thunder Bay—Nipigon" from parts of Port Arthur and Thunder Bay ridings. It was renamed "Thunder Bay—Superior North" in 1998. It consists of the eastern part of the Territorial District of Thunder Bay including the northern part of the city of Thunder Bay, Ontario.