William Harcourt
William Harcourt is the name of the following people:
- William Harcourt (Jesuit) (actually William Barrow , also Wiliam Waring ; 1609–1679), English Jesuit and martyr
- William Harcourt, 3rd Earl Harcourt (1743-1830), British nobleman and soldier
- William Vernon Harcourt (scientist) (1789–1871), British theologian and scientist
- William Vernon Harcourt (politician) (1827-1904), British lawyer and politician