John Roundell Palmer, 4th Earl of Selborne, GBE, FRS

John Roundell Palmer, 4th Earl of Selborne GBE FRS DL FIBiol (born 24 March 1940), is a British peer, ecological expert and businessman. He is one of the hereditary peers elected to remain in the House of Lords after the passing of the House of Lords Act 1999.

The son of Captain William Palmer, Viscount Wolmer, in turn son of Roundell Palmer, 3rd Earl of Selborne, and the Honourable Grace Ridley, Lord Selborne succeeded to his grandfather's titles in 1971. He was educated first at St. Ronan's School, Hawkhurst, and at Eton and Christ Church, Oxford, where he graduated with a Bachelor of Arts in 1961, proceeding to complete a Master of Arts.