William Bennet
William Bennet may refer to:
- William Bennet (MP for Ripon), MP for Ripon
- William Bennet (minister), Scottish clergyman, minister of Trinity College Kirk
- William Bennet (bishop), Bishop of Cloyne and antiquary
- William Bennet (musician), English musician
- William Stiles Bennet, American politician
- William S. Bennet II, American business executive
- William Bennet (engineer), English canal engineer
- Sir William Bennet, 1st Baronet of the Bennet baronets
- Sir William Bennet, 2nd Baronet, member of 1st Parliament of Great Britain
- Sir William Bennet, 3rd Baronet of the Bennet baronets