Others
- William Fox (paymaster) (fl. 17th century), Paymaster of the Forces of England
- William F. Fox (1840–1909), forester, 19th century member of the 28th Regiment United States Colored Troops and author of Regimental Losses in the American Civil War
- William Darwin Fox (1805–1880), English clergyman and amateur scientist
- William Fox (palaeontologist) (1813–1881), English clergyman and pioneer dinosaur hunter
- William Fox (producer) (1879–1952), founder of movie studio Fox Film Corporation
- William Fox (actor) (1911–2008), English comedy actor
- William Thornton Rickert Fox (1912–1988), American foreign policy professor at Columbia University
- William Price Fox (born 1926), American novelist and essayist
- William Fox (goldminer) (1827–1890), New Zealand gold prospector and goldminer
- William Tilbury Fox (1836–1879), English dermatologist
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