Lord George Manners-Sutton (8 March 1723 – 7 January 1783, Kelham Hall), born Lord George Manners, was a British nobleman and politician, the third son of John Manners, 3rd Duke of Rutland. On 5 December 1749, he married Diana Chaplin (d. 1767), only daughter of Thomas Chaplin of Blankney, Lincolnshire, by whom he had nine children: He entered Parliament in 1754, succeeding his elder brother, the Marquess of Granby as Member of Parliament for Grantham, representing Newark from 1780. In 1762, he adopted the additional surname of Sutton, upon inheriting the estates of that family, including the family seat of Kelham Hall, from his elder brother Lord Robert Manners-Sutton. The change of name, though, was enabled by a 1734 Act of Parliament—many years earlier—when his brother succeeded to those estates. On 5 February 1768, he married Mary Peart, daughter of Joshua Peart, by whom he had one daughter: When the Nottinghamshire Militia was reformed in 1775 he was appointed its Colonel, a position he held until his death. He died at Kelham Hall in 1783 and was succeeded by his eldest son, George. He was buried in the chancel of St Wilfrid's Church, Kelham.