Marina Sylvie Foïs (born 21 January 1970) is a French actress.

Born in Boulogne-Billancourt in the department of Hauts-de-Seine in a family from Russian, Jewish Egyptian, German and Italian ancestry, Marina Foïs was discovered in 1986 for her comedy work in The School for Wives, at the age of 16. She decided to take classes by correspondence and obtained her high school final exam two years later. She then joined The Royal Imperial Green Rabbit Company, which later became Les Robins des Bois, composed of students from the Cours Florent taught by Isabelle Nanty.