William Eyre may refer to:

William Eyre (died 1629), MP for Heytesbury and Wiltshire William Eyre (leveller) (fl. 1634–1675), English Parliamentary army officer in the English Civil War and a Leveller William Eyre of Neston (fl. 1642–1660), parliamentarian army officer and politician William Eyre (lieutenant-colonel) (died 1765), Battle of Lake George, Battle of Carillon Sir William Eyre (British Army officer) (1805–1859), general in the British Army William Eyre (painter) (1891–1979), English landscape painter Rev. William Leigh Williamson Eyre (1841–1914), English naturalist and mycologist Willie Eyre (born 1978), baseball player

See also Eyre (surname)