William Beatty
William Beatty may refer to:
- Sir William Beatty (surgeon), Irish surgeon in the Royal Navy
- William Beatty (Ontario politician), member of the 1st Parliament of Ontario
- William Henry Beatty, Ontario lawyer and businessman
- William Rabb Beatty, Ontario businessman
- William H. Beatty, former Chief Justice of the Supreme Court of California
- William Beatty (Pennsylvania politician), U.S. Representative from Pennsylvania
- Will Beatty, American football offensive tackle
- William L. Beatty, U.S. federal judge
- William Beatty (rugby union), Irish international rugby union player