William King (1685–1763) was an English academic and writer, Principal of St Mary Hall, Oxford from 1719, He was known for strongly held Jacobite views, and as a satirist and poet.
Born at Stepney, Middlesex, on 16 March 1685, he was the son of the Rev. Peregrine King and Margaret, daughter of Sir William Smyth, bart., of Radclive, Buckinghamshire. After attending Salisbury grammar school he entered Balliol College, Oxford, on 9 July 1701, and graduated B.C.L. on 12 July 1709, D.C.L. on 8 July 1715. He was called to the bar at Gray's Inn in 1712, and admitted a civilian on 20 January 1716, but having a private income, he never sought legal practice.
King devoted his life to scholarship and literature, interested himself in politics, and was long recognised the head of the Jacobite party at Oxford. Politically he was a close associate of Sir John Hynde Cotton, 3rd Baronet. His views are now seen as directed to his contemporary dislikes, rather than being retrospective. He looked to gain attention to them by shock tactics.
For a time King acted as secretary to the Duke of Ormonde and the Earl of Arran, when they were Chancellor of the University of Oxford, and he was elected principal of St Mary Hall in 1719. He resigned his secretaryship in 1722, when he stood for the parliamentary representation of the university, but was easily defeated by George Clarke. St Mary Hall had few students, but one who was influenced by King was Sanderson Miller.