William Wainwright may refer to:
William John Wainwright (1855–1931), British artist from Birmingham William Wainwright (land developer) (1836–?), developer of Rockaway Beach, Queens in New York Bill Wainwright (1908-2000), British communist activist William L. Wainwright (born 1947), American member of the North Carolina General Assembly William S. Wainwright, American president of Southeastern Louisiana University William Mark Wainwright or William Orbit (1956–2026), English musician and record producer