William Fraser may refer to:
William W. Fraser (1844–1915), American Civil War soldier and Medal of Honor recipient
William Archibald Kenneth Fraser (1886–1969), British army officer
William Fraser (British Army officer) (1890–1964), British army officer
William M. Fraser III (born 1952), United States Air Force general
William Fraser, of Fraserfield (1691–1727), Scottish landowner and politician, MP for Elgin Burghs 1722–25
William Fraser (Clerk of the Signet) (died 1802), British politician, Clerk of the Signet and an Undersecretary of State
Sir William Fraser, 4th Baronet (1826–1898), English politician
William Fraser (Canadian politician) (1832–1909), member of the Legislative Assembly of Northwest Territories, 1872–1875
William Alexander Fraser (1886–1962), 20th-century Canadian politician
William Fraser (New Zealand politician, born 1924) (1924–2001), New Zealand politician
William Fraser (New Zealand politician, born 1827) (1827–1901), New Zealand politician
William Fraser (New Zealand politician, born 1840) (1840–1923), New Zealand politician
Ian Fraser, Baron Fraser of Lonsdale (William Jocelyn Ian Fraser, 1897–1974), British politician and chairman of St Dunstan's
Willie Fraser (born 1964), professional baseball player
Willie Fraser (footballer) (born 1929), Australian footballer who played for A.F.C. Sunderland in the 1950s
William Fraser (rugby union) (born 1989), Saracens F.C. Academy Player
William Lovat Fraser (1884–1968), Scottish sportsman who played both cricket and rugby union at an international level
William Fraser (bishop of St Andrews) (died 1297), Bishop of St Andrews, Guardian of Scotland
William Fraser (historian) (1816–1898), professor of Scottish history
William Fraser (bishop of Arichat) (1779–1851), Canadian Roman Catholic bishop
William Fraser, 1st Baron Strathalmond (1888–1970), Scottish businessman and chairman of the Anglo-Iranian Oil Company
William Fraser (British administrator), working in Madras, India, 1709–1711
William Fraser (British India civil servant) (1784–1835), working in Delhi, India, 1784?-1835
William Kerr Fraser (born 1929), British civil servant and University of Glasgow vice-chancellor
William Fraser, 12th Lord Saltoun (1654–1715), Scottish peer and the 11th Laird of Philorth
William Mackenzie Fraser (1878–1960), New Zealand labourer, civil engineer and ethnological collector
