The Harrad Experiment is a 1973 coming-of-age film about a fictional school, named Harrad College, where the students learn about sexuality and experiment with each other. Based on the 1966 novel of the same name by Robert Rimmer, this film deals with the concept of free love during the height of the sexual revolution, which took place in the United States during the late 1960s and early 1970s.

The movie stars James Whitmore and Tippi Hedren as the married couple who run the school, and includes a young Don Johnson as one of the students who tries to go beyond the rules. It was directed by Ted Post. The screenplay, based upon Rimmer's novel, was co-written by Ted Cassidy and Michael Werner.

A sequel, Harrad Summer, was released in 1974.