The Red Danube
- annos singulos: 1949
- Patriam: United States of America
- genus: Drama, War, Romance
- Studio: Metro-Goldwyn-Mayer
- keyword: kgb, colonel, vienna, austria, convent (nunnery), ballerina
- Director: George Sidney
- cast: Walter Pidgeon, Ethel Barrymore, Peter Lawford, Angela Lansbury, Janet Leigh, Louis Calhern