William Fitzherbert may refer to:
- Saint William of York, Archbishop of York
- William Fitzherbert (New Zealand politician) (1810–1891), 19th century New Zealand politician
- Sir William Fitzherbert, 1st Baronet 1748-1791 of Derbyshire
- William Fitzherbert (MP), British MP for Derby 1762–1772
- William Fitzherbert (c.1520-?59), MP for Lichfield