Diana Josephine Churchill (21 August 1913 – 8 October 1994) was an English actress. On leaving school she begged her father to let her train for the stage. She made her first professional appearance in 1931 and her film debut in 1933, but her big break came in 1935 with the comedy film Foreign Affaires.

She was a crisp, opulent blonde with blue eyes who appeared in several British films, including Scott of the Antarctic (1948). She was married to the actors Barry K. Barnes (1938-1965) and Mervyn Johns (1976-1992).