Gregory Ratoff (20 April 1897 – 14 Desember 1960) was 'n Amerikaanse akteur, regisseur, en vervaardiger. Hy was bekend vir sy rolle in die rolprente Once in a Lifetime (1932), Black Magic (1949), All About Eve (1950), en The Sun Also Rises (1957). 1921: Dubrowsky, der Räuber Ataman 1932: Once in a Lifetime 1932: Secrets of the French Police 1932: Skyscraper Souls 1932: Symphony of Six Million 1932: What Price Hollywood? 1933: Girl Without a Room 1933: I'm No Angel 1933: Professional Sweetheart 1933: Sitting Pretty 1933: Let's Fall in Love 1934: Forbidden Territory 1934: The Great Flirtation 1934: Trouble Ahead 1935: This Woman Is Mine 1935: Hello, Sweetheart 1935: Sous la griffe 1936: Here Comes Trouble 1936: Sing, Baby, Sing 1936: Sins of Man 1936: Under Your Spell 1937: Café Metropole 1937: Lancer Spy 1937: Seventh Heaven 1937: You Canot Have Everything 1938: Gateway 1939: Barricade 1939: Day-Time Wife 1939: Hotel for Women 1939: Intermezzo: A Love Story 1939: Rose of Washington Square 1939: Wife, Husband and Friend 1940: The Great Profile 1940: I Was an Adventuress 1940: Public Deb No.