Delphine Claire Beltiane Seyrig (April 10, 1932 – October 15, 1990) was a stage and film actress and a film director.
Seyrig was the daughter of archaeologist Henri Seyrig and Hermine de Saussure, sister of the composer Francis Seyrig. She grew up in Lebanon and her family moved to New York when she was 10 years old. When her parents returned to Lebanon in the late 1940s, she was sent to school at the Le Collège-Lycée Cévenol International, a unique secondary school in Haute-Loire, France, which had been founded by Protestant pacifists and social justice activists ten years earlier in 1938. Seyrig attended Cévenol from 1947 to 1950.
As a young woman, Seyrig studied acting at Comédie de Saint-Étienne, training under Jean Dasté, and at Centre Dramatique de l'Est. She appeared briefly in small roles in TV series Sherlock Holmes. In 1956 she returned to New York and studied at Actors' Studio. In 1958 she appeared in her first film, Pull My Daisy. In New York she met the director Alain Resnais, who asked her to star in his film, L'Année dernière à Marienbad. Her performance brought her international recognition and she moved to Paris. Among her roles of this period is the older married woman in François Truffaut's Baisers volés (1968).