Edward Montagu Cavendish Stanley, Lord Stanley (9 July 1894 – 16 October 1938) was a British Conservative politician. The eldest son of the 17th Earl of Derby, he held minor political office before being appointed Secretary of State for Dominion Affairs in 1938, sitting in the cabinet alongside his brother Oliver Stanley. However, Stanley died only a few months after this appointment, aged 44, with his oldest son, Edward John Stanley, succeeding to the earldom in his stead.