William Fitzherbert
William Fitzherbert may refer to:
- Saint William of York, Archbishop of York
- William Fitzherbert (New Zealand politician), New Zealand politician
- Sir William [FitzHerbert, 1st Baronet], of Derbyshire
- William FitzHerbert (MP), British MP for Derby (UK [Parliament constituency)|Derby] 1762–1772, and the 1st Baronet's father
- William Fitzherbert (c. 1520–1559?), MP for Lichfield
- William Fitzherbert (mayor), mayor of Lower Hutt, New Zealand