Uptown Saturday Night is a 1974 American action comedy and crime comedy film, written by Richard Wesley and directed by and starring Sidney Poitier, with Bill Cosby and Harry Belafonte co-starring. Cosby and Poitier teamed up again for Let's Do It Again (1975) and A Piece of the Action (1977). Although Cosby's and Poitier's characters have different names in each film, the three films are considered a trilogy. Uptown Saturday Night premiered on June 15, 1974, at the Criterion Theatre in New York and opened to positive reviews.

The plot of the film revolves around efforts to retrieve a stolen wallet, which contains a winning lottery ticket.

In 2024, the film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".