Kathryn Grayson (born February 9, 1922) is an American actress and operatic soprano singer.
Trained as an opera singer from the age of twelve, Grayson was contracted to MGM and established a career in films from the early 1940s. Most of her films were musicals and after several supporting roles, she was given lead roles in such films as Show Boat (1951) and Kiss Me Kate (1953). She was paired with Howard Keel and Mario Lanza in some of her films.
When movie musicals fell out of favor with film audiences, she progressed to theatre work, and appeared in several musicals, including the highly successful Camelot from 1962 until 1964. During the 1960s, she performed in several operas, including La bohème, Madama Butterfly, Orpheus in the Underworld and La traviata.