William Edward Ellis (November 7, 1908 – September 26, 1982) was a Vice admiral in the U.S. Navy. He ended his 40 year career as Chief of Staff to the Supreme Allied Commander Atlantic (SACLANT). Ellis first distinguished himself as a naval aviator during World War II, during which time he earned commendations for service in the North African Campaign and, later, valor awards for his leadership as Commander Air Group 18 aboard USS Intrepid.