Louis Ralph (born Ludwig Josef Musik; 17 August 1878 – September 1952) was an Austrian film actor and director.^[1]

He was born Ludwig Musik in Graz, Styria, Austria-Hungary (now Austria), and died in Berlin at age 74.

Selected filmography

• Die Vila der Narenta (1919)
• Der Schatzgräber von Blagaj (1919)
• Diamonds (1920)
• Lady Hamilton (1921)
• The Golden Plague (1921)
• The Lodging House for Gentleman (1922)
• The Inheritance (1922)
• The Unknown Tomorrow (1923)
• The Green Manuela (1923)
• The Love of a Queen (1923)
• The Final Mask (1924)
• The Voice of the Heart (1924)
• Tragedy in the House of Habsburg (1924)
• Orient (1924)
• The Humble Man and the Chanteuse (1925)
• The Elegant Bunch (1925)
• Our Emden (1926)
• The Circus of Life (1926)
• The Queen Was in the Parlour (1927)
• Ghost Train (1927)
• Alpine Tragedy (1927)
• The Little Slave (1928)
• Escape from Hell (1928)
• Casanova's Legacy (1928)
• Alraune (1928)
• Spione (1928)
• Cyanide (1930)
• Road to Rio (1931)
• The Virtuous Sinner (1931)
• The Yellow House of Rio (1931)
• Cruiser Emden (1932)
• Grandstand for General Staff (1932)
• Decoy (1934)
• My Heart Calls You (1934)
• Artisten (1935)
• The Deruga Case (1938)
• Congo Express (1939)
• The Thing About Styx (1942)
• Die goldene Stadt (1942)
• Laugh Bajazzo (1943)
• I pagliacci (1943)