The Mysterious Mr. Valentine is a 1946 American film noir crime film directed by Philip Ford starring William Henry, Linda Stirling and Virginia Christine.^[1]

A young girl gets a flat tire, and ends up with her car being stolen. Later, her car is involved in an accident which results in a man's death. The gangsters who stole the car plant the body in her car to make it look like she was at fault.

• William Henry as Steve Morgan
• Linda Stirling as Janet Spencer
• Virginia Christine as Lola Carson
• Thomas E. Jackson as Police Lt. Milo Jones (credited as Thomas Jackson)
• Barbara Woodell as Rita Armstrong
• Kenne Duncan as Sam Priestly (credited as Ken Duncan)
• Virginia Brissac as Martha, the Housekeeper
• Lyle Latell as Peter Musso, Henchman
• Ernie Adams as Frank Gary, Henchman
• Tristram Coffin as John Armstrong
• Arthur Space as County Coroner
• Robert Bice as Doctor

Film critic Hal Erickson wrote that the film was "a neat-and-tidy thriller from the Republic B-picture mills."^[2]