Dame Olivia Mary de Havilland (; born July 1, 1916) is a retired American actress born in Japan to British parents. Her career spanned from 1935 to 1988. She appeared in 49 feature films and was one of the leading movie stars during the golden age of Classical Hollywood. Her younger sister was the actress Joan Fontaine.
De Havilland came to prominence as a screen couple with Errol Flynn in adventure films like Captain Blood (1935) and The Adventures of Robin Hood (1938). One of her best-known roles is Melanie Hamilton in the film classic Gone with the Wind (1939). De Havilland departed from ingénue roles in the 1940s, and later won awards for her performances in To Each His Own (1946), The Snake Pit (1948), and The Heiress (1949), including two Academy Awards. She was also successful in work on stage and television. De Havilland has lived in Paris since the 1950s and received honours like the National Medal of the Arts, the Légion d'honneur and the appointment to Dame Commander of the Order of the British Empire.
She is also known as Olivia Mary de Havilland.