The Heart Is a Lonely Hunter is a 1968 American film adaptation of the 1940 novel of the same name by Carson McCullers. It was directed by Robert Ellis Miller. It stars Alan Arkin and Sondra Locke, who both earned Academy Award nominations for their performances. The film updates the novel's small-town Southern setting from the Depression era to the contemporary 1960s. The film is recognized by the American Film Institute in AFI's 100 Years of Film Scores – Nominated.

Carson McCullers was an American novelist, short-story writer, playwright, essayist, and poet. Her first novel, The Heart Is a Lonely Hunter (1940), explores the spiritual isolation of misfits and outcasts in a small town of the Southern United States. Her other novels have similar themes and most are set in the Deep South.