Sir John Shelley 4th Baronet (5 March 1692 – 6 September 1771) of Mitchelgrove, Sussex, was a British Whig politician who sat in the House of Commons between 1727 and 1747.
Shelley was elected Member of Parliament for Arundel at the 1727 general election. He supported the Government consistently throughout his parliamentary career. He was returned unopposed for Arundel at the 1734 general election but lost the seat in 1741. His brother-in-law, the Duke of Newcastle brought him in as MP for Lewes at a by-election on 6 December 1743. His wife sought an official post for her husband from her brother but nothing materialized. Questions were raised about his private life and he was dropped at the 1747 general election.[2]
Shelley died on 6 September 1771. He had two daughters by his first wife, and a son and two daughters by his second wife. He was succeeded in the baronetcy by his son John. Henrietta, one of his daughters by his second wife Margaret, married George Onslow, 1st Earl of Onslow.[1]