Talbot Yelverton, 1st Earl of Sussex PC KB FRS (2 May 1690 – 27 October 1731) was an English peer and member of the House of Lords, styled Hon. Talbot Yelverton until 1704, and known as Talbot Yelverton, 2nd Viscount Longueville from 1704 to 1717, when he was created Earl of Sussex.