William Hare may refer to:William Hare (murderer), Irish criminal, member of the infamous Edinburgh duo of Burke and Hare William D. Hare (1834–1910), Oregon politician William Hobart Hare (1838–1909), Episcopal bishop in America William G. Hare (1882–1971), Oregon politician William Hare (philosopher), English academic, professor of education and philosophy in Halifax, Nova Scotia since 1970 William Hare (1935–2005), Canadian Olympic sports shooter William Hare, 1st Earl of Listowel (1751–1837), Irish peer and Member of Parliament William Hare, 2nd Earl of Listowel (1801–1856), grandson of the 1st Earl, peer and Member of Parliament William Hare, 3rd Earl of Listowel (1833–1924), son of the 2nd Earl, Baron Hare, Liberal politician William Hare, 5th Earl of Listowel (1906–1997), grandson of the 3rd Earl, Labour politician William Hare Group, a UK based structural steel contractor