Shadow of the Thin Man is the fourth of six The Thin Man murder mystery comedy films. It was released by MGM in 1941 and was directed by W. S. Van Dyke. It stars William Powell and Myrna Loy as Nick and Nora Charles. Also, in this film their son Nick Jr. is old enough to figure in the comic subplot. Other cast members include Donna Reed and Barry Nelson. This was one of three films in which Stella Adler appeared.

Nick and Nora Charles are fictional characters created by Dashiell Hammett in his novel The Thin Man. The characters were later adapted for film in a series of films between 1934 and 1947; for radio from 1941 to 1950; for television from 1957 through 1959; as a Broadway musical in 1991; and as a stage play in 2009.