Odile Versois (born Étiennette de Poliakoff-Baydaroff; 15 June 1930 – 23 June 1980) was a French actress who appeared in 47 film and television productions between 1948 and 1980. Versois was the sister of actresses Marina Vlady, Hélène Vallier and Olga Baïdar-Poliakoff. Their father, Vladimir, was a noted opera singer of Russian descent, and their mother, Militza Envald Voropanoff, was a dancer. Born in Paris, she began acting as a child and for a while pursued a ballet career.