Harrie Stephen Seward (26 February 1884 – 23 July 1958) was an Australian politician. The brother of Leo Seward, and the son Stephen Seward (1853-1923), and Mary Ellen Seward (?1849-1935), née Kelleher, Harrie Stephen Seward was born at Rochester, Victoria. He was educated in Ballarat at St Patrick's College. He became a bank officer, and moved to Western Australia, becoming a farmer at Pingelly from 1913. He served in the military 1915–1919.