Robert Thalheim (born July 2nd, 1974 in Berlin) is a German stage and film director and screenwriter.

Thalheim was an assistant director at the Berliner Ensemble in 1997/98 and then studied Modern German Literature, History and Politics at the Free University of Berlin until the year 2000, in which period he edited the first issues of the culture magazine Plotky. In 2000 he began to study film directing at the Filmhochschule Potsdam-Babelsberg. His teacher there was Rosa von Praunheim, who monitored his work on his first films.