Jennifer on My Mind is a 1971 American comedy-drama film based on the 1968 novel Heir by Roger L. Simon. It was directed by Noel Black from a screenplay by Erich Segal, stars Michael Brandon and Tippy Walker, and features Robert De Niro in a minor role.

This was one of the many early 1970s films dealing with addiction following the explosion of recreational drug use in the 1960s.

The basic premise of the film is centered around two rich American young adults who meet and fall in love in Venice, Italy. With plenty of money and no real responsibilities or direction in life, the couple begin experimenting with illicit drugs. The film travels through a series of flashbacks showing their progression from marijuana to harder drugs as a result of their complex romantic entanglement with each other.