William Banks (1636 – 6 July 1676) of Winstanley Hall, Wigan was an English politician who sat in the House of Commons twice between 1660 and 1676. Banks was the only surviving son of William Banks of Winstanley, by his second wife Sarah Jones, daughter of Walter Jones of Chastleton, Oxfordshire. He succeeded to the Winstanley estate on the death of his father in 1666. Banks died aged about 40 during the long parliamentary recess and was buried at Chastleton. Banks had married Frances Legh, daughter of Peter Legh of Bruch Hall, Lancashire on 23 October 1656 and had four sons and three daughters.