Leon Schiller or Leon Schiller de Schildenfeld was a Polish theatre and film director, as well as critic and theatre theoretician. He also wrote theatre and radio screenplays and composed music. He was born in Kraków under the Austrian rule during the foreign Partitions of Poland, to a family of Austrian origin that had been ennobled by Empress Maria Theresa.
Schiller became famous for his 1934 staging of Adam Mickiewicz's Dziady at Warsaw's Teatr Polski. This was also presented in Lwów, Wilno as well as in Sofia in Bulgaria.