Marcelle Corday (8 January 1890 – 25 June 1971) was a Belgian-born American actress. She mostly played character parts in silent and sound films. Corday was a niece of violinist Eugène Ysaÿe. She learned to play violin and piano, studying at the Conservatoire de Paris and was a concert pianist until she fell and broke her arm. After that injury, she turned her attention to acting. She acted in Paris with the Vieux Colombier company, headed by Jacques Copeau. She came to New York with that troupe in 1917 and remained in the United States when its engagements ended. Not limited to English-speaking roles, Corday acted in Dutch, French, German, and Italian. In the 1920-21 season, she acted with Ethel Barrymore in Declassee.