On the Riviera is a 1951 Technicolor musical comedy film made by 20th Century Fox. Directed by Walter Lang and produced by Sol C. Siegel from a screenplay by Valentine Davies and Phoebe and Henry Ephron, it is the studio's fourth film based on the 1934 play The Red Cat by Rudolph Lothar and Hans Adler. This version stars Danny Kaye, Gene Tierney and Corinne Calvet, with Marcel Dalio, Henri Letondal and Sig Ruman.

The studio had signed Kaye for a one-picture deal, and revived the story as a vehicle for the multi-talented actor, who had a history of playing dual or multiple roles.

On the Riviera was nominated for two Academy Awards: Scoring of a Musical Picture (by Alfred Newman) and Best Art Direction in Color (Art Directors Lyle R. Wheeler, Leland Fuller, Joseph C. Wright, and Set Decorators Thomas Little and Walter M. Scott).