William Forbes
William Forbes may refer to:
- William Forbes (bishop) (1585–1634), Scottish churchman, the first Bishop of Edinburgh
- William Forbes of Callendar (1756–1823), prosperous Scottish coppersmith and landowner
- Sir William Forbes, 6th Baronet (1739–1806), Scottish banker
- William Alexander Forbes (1855–1883), English zoologist
- William Cameron Forbes (1870–1959), governor-general of the Philippines and investment banker
- William S. Forbes (1831–1905), American physician
- William Forbes (MP) (1806–1855), MP for Stirlingshire
- William Forbes (Lower Canada politician) (1787–1814), merchant and politician in Lower Canada
- Willie Forbes (1922–1999), Scottish former footballer
- William E. Forbes (c. 1906–1999), member of the University of California Board of Regents
- William Henry Forbes (1815–1875), American fur trader and territorial legislator
See also
- Billy Forbes, Scottish footballer
- Billy Forbes (footballer) (born 1990), Turks and Caicos international soccer player
- William Forbes Gatacre (1843–1906), British soldier
- William Forbes Mackenzie (1807–1862), Scottish Conservative politician
- William Forbes Skene (1809–1892), Scottish historian and antiquary
- William Forbes-Sempill, 19th Lord Sempill (1893–1965), British engineer