William Proctor
William Proctor may refer to:
- Will Proctor, American football player
- William Proctor (Salem), one of the accused in the Salem witch trials
- William Proctor (Australian politician), New South Wales politician
- William Proctor (UK politician), Labour Party Member of Parliament for Eccles 1945–1964
- William Beauchamp-Proctor, British Royal Navy officer
- William H. Proctor, member of the Wisconsin State Assembly
- William L. Proctor, Republican Party member of the Florida House of Representatives