Margaret Leighton, English actress (d. 1976)
Margaret Leighton, CBE (26 February 1922 – 13 January 1976) was an English actress, active on stage and television, and in film. Her film appearances included (her first credited debut feature) in Anatole de Grunwald's The Winslow Boy (1948). For The Go-Between (1971), she won the BAFTA Award for Best Actress in a Supporting Role and was nominated for the Academy Award for Best Supporting Actress.

Leighton began her career on stage in 1938, before joining the Old Vic and making her Broadway debut in 1946. A four-time Tony Award nominee, she twice won the Tony Award for Best Actress in a Play: for the original Broadway productions of Separate Tables (1957) and The Night of the Iguana (1962). She also won an Emmy Award for a 1970 television version of Hamlet.