William Mills
William Mills may refer to:
Politics
- William Mills, MP for St Ives 1790–96 and Coventry 1805–12
- William J. Mills, Governor of the New Mexico Territory
- William George Mills, sheep breeder and politician in South Australia
- William Oswald Mills, American politician
- William Thomas Mills, merchant and politician in Ontario, Canada
- William Stratton Mills, politician in Northern Ireland
- William Mills , Scottish cotton merchant and Lord Provost of Glasgow
- William Ellison Mills, American leather manufacturer and politician from New York
Sports
- William Mills , English lawyer and cricketer
- William Mills , New Zealand cricketer
- William Mills,English international rugby union player
- Willie Mills , American professional baseball pitcher
- Billy Mills , English professional footballer
- Billy Mills , South African racing driver
- Willie Mills, Scottish professional footballer
- Bill Mills , Major League Baseball player
- Billy Mills, American Olympic athlete
Others
- William Mills , British stage actor
- William Augustus Mills, American major general in the War of 1812
- William Mills , Australian surveyor
- William Mills , Canadian Anglican bishop of Ontario
- William Mills , inventor of the Mills bomb
- William Corless Mills, American museum curator
- William Mills , Western Australian businessman
- William Hobson Mills, British organic chemist
- William Harold Mills, American mathematician
- Billy G. Mills, Los Angeles Superior Court judge and City Council member
- Billy Mills , Irish poet