Li'l Abner is a 1940 film based on the comic strip Li'l Abner created by Al Capp. The three most recognizable names associated with the film are Buster Keaton as Lonesome Polecat, Jeff York as Li'l Abner, and Milton Berle, who co-wrote the title song.

This was the first of two films based on the popular Al Capp strip, the second being Paramount's 1959 musical, Li'l Abner, which was also based on the hit 1956 Broadway musical Li'l Abner.

The film was poorly received, with the rubber "facial appliances" worn by some of the characters to simulate Capp's character designs being especially deficient.