The Fleet's In is a 1942 movie musical produced by Paramount Pictures, directed by Victor Schertzinger, and starring Dorothy Lamour and William Holden. Although sharing the title of the 1928 Paramount film starring Clara Bow and Jack Oakie, it was not a remake. It was actually the second film version of the 1933 Kenyon Nicholson–Charles Robinson stage play Sailor, Beware!, enlivened with songs by Schertzinger and lyricist Johnny Mercer. The score, under the musical direction of Victor Young, includes the popular hits "Tangerine", "Arthur Murray Taught Me Dancing in a Hurry" and "I Remember You".

Jimmy Dorsey and his band are prominently featured in the movie. Supporting cast members include Eddie Bracken, singers Betty Jane Rhodes and Cass Daley, and Betty Hutton in her film debut.

This was the final film of Schertzinger's long directorial career. He died in October 1941, before this production's release.