William Douglas Stewart (March 26, 1938 - March 2, 2018) was a Liberal party member of the House of Commons of Canada.
He was a lawyer by career.
Born at Victoria, British Columbia, Stewart was first elected at the Okanagan—Kootenay riding in the 1968 general election.
Stewart was re-elected there in the 1972 election, but did not seek a third term in federal office after completing his term in the 29th Canadian Parliament.