William Forster
William Forster may refer to:
- William Forster (English politician), MP for Berkshire
- William Forster (bishop), Church of England bishop of Sodor and Man
- William Forster (mathematician), English mathematician
- William Forster (philanthropist), English Quaker preacher and philanthropist
- William Forster (British Army officer), British Army general
- William Forster (Australian politician), premier of New South Wales and poet
- William Edward Forster, British statesman, Liberal MP, and chief secretary for Ireland
- William Mark Forster, Australian philanthropist
- William Thomas Forster, Canadian politician
- Bill Forster (footballer), English footballer
- William Forster (cricketer), Australian cricketer
- William Forster (judge), Australian lawyer, first chief justice of the Northern Territory
- William H. Forster, U.S. Army lieutenant general
- Will Forster, British Liberal Democrat politician, MP for Woking