Circus Renz (German: Zirkus Renz) is a 1943 German drama film directed by Arthur Maria Rabenalt and starring René Deltgen, Paul Klinger and Angelika Hauff. It is a circus film, made as a deliberately escapist release at a time when the Second World War was starting to turn against Germany and its allies. The film takes its title from the real Circus Renz and is loosely based on the career of its founder Ernst Renz. It premiered at Berlin's UFA-Palast am Zoo in September 1943. It was a major commercial success.

It was made partly at the Babelsberg Studios in Berlin. The film's sets were designed by the art director Ernst H. Albrecht. Location shooting took place around Breslau in Silesia.