Girl in 313 is a 1940 American drama film directed by Ricardo Cortez and written by Barry Trivers and M. Clay Adams. The film stars Florence Rice, Kent Taylor, Lionel Atwill, Kay Aldridge, Mary Treen and Jack Carson. The film was released on May 31, 1940, by 20th Century Fox.

Police agent Joan Matthews goes undercover in a gang of jewel thieves and when about to find who the evildoers are, she falls in love with one of the thieves.