William Bull
William Bull may refer to:
- William Bull , British Olympic diver
- William Bull , landowner and politician in the Province of South Carolina
- William Bull II, lieutenant governor of the Province of South Carolina
- William Bull , English independent minister
- William Bull , English botanist
- William Bull , founder of Bilbul, a small town in New South Wales, Australia
- Sir William Bull, 1st Baronet, British solicitor and politician
- William Frederick Bull, Canadian diplomat
- William Ford Bull, American football player and coach
- William T. Bull, American football player and coach
- William L. Bull, American banker and president of the New York Stock Exchange