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. In 1762, he adopted the additional surname of Sutton, upon inheriting the estates of that family 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, by whom he had one daughter: