William Brewster
William Brewster may refer to:
- William Brewster (Mayflower passenger), English official and Mayflower passenger in 1620
- William Brewster (ornithologist), American ornithologist
- William Brewster (priest), Canon of Windsor
- William E. Brewster, American banker, merchant, and politician from Maine
- William N. Brewster, American Protestant Christian missionary to China
- William R. Brewster, American Civil War general
- Willie Brewster, whose murder was the first time in the history of Alabama that a white man was convicted of killing a black man
- Bill Brewster (American politician), American politician
- Bill Brewster (Canadian politician), Canadian politician
- Bill Brewster (DJ), disc jockey and author of ''Last Night a DJ Saved My Life''