The Quartet That Split Up (Swedish: Kvartetten som sprängdes) is a 1950 Swedish comedy film directed by Gustaf Molander and starring Adolf Jahr, Anita Björk, Inga Landgré and Victor Sjöström. It is an adaptation of the 1924 novel of the same title by Birger Sjöberg, which had previously been made into a 1936 film. It was shot at the Råsunda Studios in Stockholm. The film's sets were designed by the art director Nils Svenwall.