George Edward Stanhope Molyneux Herbert, 5th Earl of Carnarvon, DL (26 June 1866 – 5 April 1923), styled Lord Porchester until 1890, was an English peer and aristocrat best known as the financial backer of the search for and excavation of Tutankhamun's tomb in the Valley of the Kings.
Styled Lord Porchester from birth, he was born at 66 Grosvenor Street, Mayfair, London, the only son of Henry Herbert, 4th Earl of Carnarvon, a distinguished Tory statesman, by his first wife Lady Evelyn Stanhope, daughter of Anne and George Stanhope, 6th Earl of Chesterfield. Aubrey Herbert was his half-brother. He was educated at Eton College and Trinity College, Cambridge. He inherited the Bretby Hall estate in Derbyshire from his maternal grandmother, Anne Elizabeth, Dowager Countess of Chesterfield in 1885, and succeeded his father in the earldom in 1890.
He was High Steward of Newbury.