William Bevan may refer to:
- Bill Bevan (1913–1975), American football player and coach
- Billy Bevan (1887–1957), Australian film actor
- William Bevan (abolitionist) (c. 1800–c. 1860), Congregationalist minister in Liverpool and leading abolitionist
- William Emmanuel Bevan, British electronic musician known as Burial
- William Bevan (sloopmaster) (fl. 1723–1737), Hudson's Bay Company explorer
- William Bevan (psychologist) (1922–2007), former president of the American Psychological Association
- William Bevan (priest) (1821–1908), Welsh clergyman
- SS William Bevan, see List of Liberty ships (S–Z)