Robert Koch is a 1939 Nazi propaganda film directed by Hans Steinhoff and starring Emil Jannings, Werner Krauss and Viktoria von Ballasko. The film was a biopic of the German pioneering microbiologist Robert Koch (1843–1910). It was shot at the Johannisthal Studios in Berlin and premiered at the city's Ufa-Palast am Zoo. The film was made by the Tobis Film company, and was also distributed in the United States by the largest German studio UFA.

Emil Jannings was a Swiss-born German actor who was popular in Hollywood in the 1920s. He was the first recipient of the Academy Award for Best Actor for his roles in The Last Command and The Way of All Flesh. As of 2024, Jannings is the only German ever to have won the category.