William Ballantine (disambiguation)
William Ballantine was an English Serjeant-at-law.
William Ballantine is also the name of:
- William Ballantine (priest), Roman Catholic clergyman who became the first Prefect of Scotland
- William Ballantine (MP), British Member of Parliament for Coventry 1887–1895
- Bill Ballantine (illustrator), American illustrator of circus subjects
- Bill Ballantine (biologist), marine biologist from New Zealand