The 15th Academy Awards was held in the Cocoanut Grove at The Ambassador Hotel in Los Angeles on March 4, 1943, honoring the films of 1942. The ceremony is most famous for the speech by Greer Garson; accepting the award for Best Actress, Garson spoke for nearly six minutes, considered to be the longest Oscars acceptance speech. A portion of the ceremony was broadcast by CBS Radio.

Eileen Evelyn Greer Garson was a British-American actress and singer. She was a major star at Metro-Goldwyn-Mayer who became popular during the Second World War for her portrayal of strong women on the homefront; listed by the Motion Picture Herald as one of America's top-10 box office draws from 1942 to 1946.