William Hare
William Hare is the name of the following people:
- William Hare, 1st Earl of Listowel (1751–1837), Irish peer
- William Hare (serial killer) (1792 / 1804– ??), British serial killer
- William Hare, 2nd Earl of Listowel (1801-1856), Irish peer
- William Hare, 3rd Earl of Listowel (1833–1924), Anglo-Irish peer and politician
- William Hare, 5th Earl of Listowel (1906–1997), British peer and politician
- William Hare (philosopher) (* 1944), English philosopher
