William Frederick Powell (1826 [1] – 1889[2]) was a political figure in Ontario, Canada. He represented Carleton in the Legislative Assembly of the Province of Canada from 1854 to 1866 as a Conservative member.
He was born in Perth, Upper Canada[1], the son of Colonel James Hamilton Powell[2], and had moved to Bytown by 1847[1]. Powell was among those who lobbied for a Protestant hospital in Bytown[3]. He served as reeve for Bytown[1]. In 1857, he married Rosanna Margaret Wallis[2]. Powell also served as sheriff for Carleton County[4] and was captain of an infantry company at Bells Corners, Canada West[5].
Powell Avenue in the Glebe area of Ottawa was named after him[3].
His brother John A.H. Powell served in the legislative assembly for Upper Canada.