William Willis
William Willis may refer to:
Politicians
- William Willis , American politician and historian, mayor of Portland, Maine, 1857
- William Willis Garth, American politician
- William Willis , British politician, MP for Colchester 1880–1885
- William [Jarvis Willis], New Zealand politician
- William [Nicholas Willis], Australian politician
Others
- William [Downes Willis], British clergyman, theologian and author
- William Willis , British physician
- William Willis , British inventor
- William Willis , rafter and adventurer
- William Hailey Willis, American classicist
- William S. Willis, ethnohistorian and pioneer in African American anthropology
- William Willis , American artist