William Bird
William Bird may refer to:
- Sir William Bird (lawyer), lawyer and Member of Parliament for Oxford University
- William Hamilton Bird, Irish musician
- William Wilberforce Bird (merchant), Member of Parliament for Coventry
- William Wilberforce Bird (governor), his son, Deputy Governor of Bengal and briefly Governor-General of India
- Sir William Bird (solicitor), British solicitor and banker, briefly a Conservative politician
- William Watson Bird, New Zealand headmaster, school inspector, educational administrator and Maori linguist
- Bill Bird, American journalist
- Will R. Bird, Canadian writer
- William Bird (doctor), British medical doctor
- William Bird (cricketer), English cricketer
- William M. Bird, Canadian politician in the Legislative Assembly of New Brunswick
- William Bird (sculptor), English sculptor