The Round-Up is a 1920 American silent Western film starring Roscoe "Fatty" Arbuckle and featuring Wallace Beery. The movie was written by Edmund Day and Tom Forman, directed by George Melford, and based on Day's play that was a huge hit for Roscoe Arbuckle's older cousin Macklyn Arbuckle and Julia Dean on the Broadway stage in 1907. It was Macklyn in the play who created the famous phrase used in advertisements of the film, nobody loves a fat man.

Arbuckle was cast as a most unconventional-looking cowboy lead in The Round-Up because the studio didn't want to let their expensive star remain idle while his next comedy was being readied, and the film turned out to be one of Arbuckle's biggest critical successes.

The movie was screened in April and May 2006 as part of a massive 56-film Arbuckle retrospective at the Museum of Modern Art in New York City. The museum chose to take the unprecedented step of running the entire series twice in a row for additional emphasis, once in April and a second time in May.