William Forster
William Forster may refer to:
- William Forster (Australian politician) (1818–1882), Premier of New South Wales and poet
- William Forster (philanthropist) (1784–1854) Quaker preacher and philanthropist
- William Edward Forster (1818–1886), British statesman, Liberal MP, and Chief Secretary for Ireland
- William Mark Forster (1846–1921), Australian philanthropist
- Henry Forster, 1st Baron Forster of Lepe (1866–1936), also known as Henry William Forster, Governor-General of Australia
- William Forster (judge) (1921–1997), first Chief Justice of the Northern Territory
- William Forster (English politician), MP for Berkshire in 1572–1576
- William Forster (bishop), see List of the Bishops of the Diocese of Sodor and Man, bishop 1634–1635
- See also