John Sargent (1750 – 9 September 1831) was a British Member of Parliament and administrator. He was born a younger son of , MP of Halstead Place, Kent and educated at Eton College (1760–67) and St. John’s College, Cambridge (1767) before studying law at Lincoln's Inn from 1770. He held a wide variety of offices: Director of the Bank of England (1778–79), Gentleman of the Privy Chamber (1784), member of the Board of Agriculture (1803), Clerk of the Ordnance (1793–1802), joint Secretary to the Treasury (1802–1804) and a (1806–21).