Masquerade in Mexico is a 1945 American comedy film directed by Mitchell Leisen and starring Dorothy Lamour, Arturo de Córdova, Patric Knowles and Ann Dvorak.

It was part of a series of films set in Latin America produced by Hollywood in the 1940s in line with the Good Neighbor policy.

[2] Ill on the flight to Mexico City, honest banker Tom Grant doesn't know that Angel O'Reilly, seated nearby, has slipped a diamond into his pocket.

She is traveling with the decidedly dishonest Boris Cassal, smuggling the gem for him, but slips away at the customs checkpoint while Tom is detained.

Tom offers to bankroll Angel's pretense as a countess, paying for a luxurious hotel suite and wardrobe.