William Powell (disambiguation)
William Powell was an American actor.
William, Willie, Bill or Billy Powell may also refer to:
Sports
- William Powell (gridiron football), CFL running back
- Bill Powell (baseball), pitcher in Major League Baseball
- William Powell (cricketer), first-class cricketer
- Billy Powell (footballer), English footballer
- Willie Powell, Negro league baseball player
- William Powell (baseball), Negro league baseball player
Politicians
- William Edward Powell, Welsh Conservative politician, member of parliament for Cardiganshire
- William E. Powell, American politician from the state of Florida
- William Powell (Canadian politician), mayor of Hamilton, Ontario
- William Powell (Corby MP), Conservative member of parliament in the United Kingdom
- Sir [William Powell, 1st Baronet], English member of parliament for Herefordshire
- William Powell (Liberal Democrat politician), Welsh Liberal Democrat member of the National Assembly for Wales
- William Thomas Rowland Powell, Welsh Conservative politician, member of parliament for Cardiganshire
- William Frederick Powell, political figure in Ontario, Canada
- William Powell (Virginia colonist), Virginia colonist, landowner, militia officer and politician
- William Frank Powell, African American diplomat
Military
- William G. Powell, Marine Corps Brevet Medal recipient
- William Henry Powell (soldier), American Civil War general
Musicians
- William Powell (singer), lead vocalist of The O'Jays
- Billy Powell, American musician
Priests
- William Powell (Archdeacon of Bath), Anglican priest
- William Powell (Archdeacon of Chester), British Anglican priest
- William Powell (Archdeacon of Colchester), academic and priest
Others
- "Benjaman Kyle", amnesiac
- William Dummer Powell, Chief Justice of Upper Canada
- William Powell (English actor), English actor
- William Henry Powell (artist), American artist
- William Henry Powell (architect), English architect
- William Powell (author), author of The Anarchist Cookbook
- William S. Powell, historian of North Carolina
- Alleged English name for Seminole fighter Osceola
- Bill Powell (golf course owner), American businessman, entrepreneur, and pioneering golf course owner
- William David Powell, American television writer, son of the actor
- William J. Powell, American civil aviator and author
- William J. Powell (attorney), U.S. Attorney for the Northern District of West Virginia
- William Bramwell Powell, American educator, author and superintendent of schools