Love with the Proper Stranger is a 1963 American romantic drama film made by Pakula-Mulligan Productions and Boardwalk Productions and released by Paramount Pictures. It was directed by Robert Mulligan and produced by Alan J. Pakula from a screenplay by Arnold Schulman.

Robert Patrick Mulligan was an American director and producer. He is best known for his sensitive dramas, including To Kill a Mockingbird (1962), Summer of '42 (1971), The Other (1972), Same Time, Next Year (1978), and The Man in the Moon (1991). He was also known in the 1960s for his extensive collaborations with producer Alan J. Pakula.