Circus (Russian: Цирк, romanized: Tsirk) is a 1936 Soviet melodramatic comedy musical film. It was directed by Grigori Aleksandrov and Isidor Simkov at the Mosfilm studios. In his own words, it was conceived as "an eccentric comedy...a real side splitter."

Starring the glamorous and immensely popular Lyubov Orlova (Aleksandrov's wife), the first recognized star of Soviet cinema and a gifted singer, the film contains several songs which instantly became Soviet classics. The most famous is the "Song of the Motherland" (Широка страна моя родная, Shiroka strana moya rodnaya). ISWC code for film music: T-926.406.620-8.

The film was based on a comedy written by Ilf and Petrov and Valentin Kataev and performed by Moscow music hall, Under the Circus Dome (Под куполом цирка), which was seen and liked by Aleksandrov. They made the play into the plot, but during the initial film shooting they went to America. Upon return, they disliked the director's interpretation, and after a conflict they abandoned the work, forbade the mention of their names in the credits, and further work on the plot was continued by Isaac Babel.