Lord George John Manners (22 June 1820 – 8 September 1874) was a British nobleman and Conservative Party politician who represented Cambridgeshire for over two decades, from 1847 to 1857 and from 1863 to 1874, when he died. He was born in London, the youngest son of John Manners, 5th Duke of Rutland by Lady Elizabeth Howard, daughter of Frederick Howard, 5th Earl of Carlisle. Charles Manners, 6th Duke of Rutland was his elder brother. He was educated at Trinity College, Cambridge, where he was a member of the University Pitt Club. He was a Justice of the Peace for Cambridgeshire.

Marriage and issue

Lord George married Lady Adeliza Matilda Fitzalan-Howard, the youngest daughter of Henry Fitzalan-Howard, 13th Duke of Norfolk, on 4 October 1855. They were second cousins through their descent from Granville Leveson-Gower, 1st Marquess of Stafford. They had five children: He died at his seat in Cheveley Park, Cambridgeshire. Lady Adeliza died in 1904.