William Hewett (disambiguation)

William Hewett may refer to:

• Sir William Hewett (Lord Mayor) (c.1505–1567), Lord Mayor of London
• William Hewett (British Army officer) (1795-1891), soldier
• William Hewett (died 1840), Royal Navy officer and surveyor of the North Sea
• Sir William Hewett (1834–1888), Royal Navy officer and recipient of the Victoria Cross