William Turner
William Turner may refer to:
- William Turner (artist) of Oxford, English watercolour painter
- William Turner (naturalist), (?-1568), English ornithologist and botanist
- William Turner (bishop of Buffalo) (1871–1936), Irish-American Roman Catholic bishop
- William Turner (bishop of Galloway) (1844–1914), Scottish Roman Catholic bishop
- William Turner (bishop of Salford) (1799–1872), English Roman Catholic bishop and vicar apostolic
- William Turner (composer), baroque English composer
- William Turner (envoy) (1792–1867)
- William Turner (minister at Wakefield) (1714–1794)
- William Turner (Unitarian minister), son of the minister at Wakefield
- William Turner (biographer), son of the Unitarian minister
- William Turner (university principal), Scottish academic
- William B. Turner (1892–1918), United States Army officer and Medal of Honor recipient
- William H. Turner, Jr., American racehorse trainer
- William J. G. Turner (aka Bill Turner), composer and stage director
- William Greene Turner (1833–1917), American sculptor
- William Ernest Stephen Turner (1881–1963), English chemist and glass technologist
- William Thomas Turner (1856–1933) Captain of the RMS Lusitania
- J. M. W. Turner (William Turner) (1775–1851), English Romantic landscape painter, watercolourist and printmaker
- Bill Turner (basketball), American basketball player
- Bill Turner (footballer) (1894–1970), English footballer
- William George Turner (1872–1937), Lord Mayor of Belfast
- William Turner (MP for Blackburn), British Member of Parliament for Blackburn
- William Turner (MP for Bodmin), British Member of Parliament for Bodmin
- William Turner (MP for City of London), British Member of Parliament for City of London
- William Turner Thiselton-Dyer (1843–1928), British botanist.
In fiction: