The Hasty Heart is a 1949 war drama film, an Anglo-American co-production starring Ronald Reagan, Patricia Neal, and Richard Todd and directed by Vincent Sherman. The film is based on the 1945 play of the same name by John Patrick.

The Hasty Heart tells the story of a group of wounded Allied soldiers in a Pacific theatre mobile surgery unit immediately after the end of World War II, who, after initial resentment and ostracism, rally around a loner, an unappreciative Scottish soldier they know is dying.

The title is taken from the proverb "sorrow is born in the hasty heart", which is quoted at several points in the film.