Sybille Maria Christina Schmitz (2 December 1909 – 13 April 1955) was a German actress.

Schmitz attended an acting school in Cologne and got her first engagement at Max Reinhardt's Deutsches Theater in Berlin in 1927. Only one year later, she made her film debut with Freie Fahrt (1928), which attracted her first attention from critics. Her other early movies include Pabst's Diary of a Lost Girl (1929), Dreyer's Vampyr (1932), and eventually F.P.1 (1932), where she played her first leading role.

Schmitz established herself as a prominent actress in German cinema with the films which followed; including Der Herr der Welt (1934), Abschiedswalzer (1934), Ein idealer Gatte (1935), and Fährmann Maria (1936). She also had roles in Die Umwege des schönen Karl (1937), Tanz auf dem Vulkan (1938), Die Frau ohne Vergangenheit (1939), Trenck, der Pandur (1940) and Titanic (1943)