William Eyre
William Eyre may refer to:
- William Eyre (died 1629), MP for Heytesbury and Wiltshire
- William Eyre (leveller), English Parliamentary army officer in the English Civil War and a Leveller
- William Eyre of Neston, parliamentarian army officer and politician
- William Eyre (lieutenant-colonel), Battle of Lake George, Battle of Carillon
- Sir William Eyre (British Army officer), general in the British Army
- William Eyre (painter), English landscape painter
- Rev. William [Leigh Williamson Eyre], English naturalist and mycologist
- Willie Eyre, baseball player