Edith Margaret Emily «Peggy» Ashcroft DBE (Croydon, Surrey, 22 de desembre de 1907 - Hampstead, Londres, 14 de juny de 1991) fou una actriu anglesa, que s'inicià en el cinema amb la pel·lícula Els trenta-nou graons d'Alfred Hitchcock encarnant a la grangera que ajuda a Richard a fugir. Preferint quedar-se al Regne Unit abans que marxar a Hollywood, es dedicà principalment al teatre.

​Dame Edith Margaret Emily Ashcroft, DBE, (22 December 1907 - 14 June 1991) known professionally as Peggy Ashcroft, was an English actress whose career spanned more than sixty years. Born to a comfortable middle-class family, Ashcroft was determined from an early age to become an actress, despite parental opposition.