William Bowyer may refer to:
Politicians William Bowyer (15th century MP), in 1411 MP for Newcastle-under-Lyme William Bowyer (died 1602), MP for Stafford William Bowyer (Keeper of the Records), MP for Westminster and Keeper of the Records in the Tower William Bowyer (died 1616), MP for Carlisle, Dunheved and Appleby William Bowyer (died 1628), Captain and Mayor of Berwick William Bowyer (MP) (–1641), MP for Staffordshire Sir William Bowyer, 1st Baronet (1612–1679), English MP for Buckinghamshire
Others William Bowyer (1663–1737), British printer William Bowyer (printer) (1699–1777), his son, British printer William Bowyer (artist) (1926–2015), British portrait and landscape painter
See also Sir William Bowyer-Smijth, 11th Baronet (1814–1883), British MP for South Essex Bowyer (surname)