Georg C. Klaren (1900–1962) was an Austrian screenwriter and film director. He worked on a number of screenplays with Herbert Juttke during the silent and early sound eras including Alfred Hitchcock's 1931 film Mary.^[1] After the Second World War, Klaren became the head dramaturge at the East German state-owned studio DEFA.

• Nanette Makes Everything (1926)
• Department Store Princess (1926)
• I Liked Kissing Women (1926)
• Assassination (1927)
• The Transformation of Dr. Bessel (1927)
• Flirtation (1927)
• Casanova's Legacy (1928)
• Sex in Chains (1928)
• Fair Game (1928)
• The Lady and the Chauffeur (1928)
• Odette (1928)
• A Knight in London (1929)
• Kolonne X (1929)
• The Lord of the Tax Office (1929)
• Somnambul (1929)
• Devotion (1929)
• Cagliostro (1929)
• Marriage in Trouble (1929)
• Perjury (1929)
• Peter the Mariner (1929)
• The Right of the Unborn (1929)
• The Hound of the Baskervilles (1929)
• Busy Girls (1930)
• Oh Those Glorious Old Student Days (1930)
• Elisabeth of Austria (1931)
• The Lovers of Midnight (1931)
• Mary (1931)
• Madame Bluebeard (1931)
• Gloria (1931)
• Chauffeur Antoinette (1932)
• Antoinette (1932)
• The Love Contract (1932)
• The Secret of Johann Orth (1932)
• Three from the Unemployment Office (1932)
• A Woman Like You (1933)
• There Is Only One Love (1933)
• Frasquita (1934)
• Pillars of Society (1935)
• The Cossack and the Nightingale (1935)
• Ave Maria (1936)
• A Woman Between Two Worlds (1936)
• Shadows of the Past (1936)
• The Love of the Maharaja (1936)
• The Chief Witness (1937)
• Heimweh (1937)
• The Beaver Coat (1937)
• The False Step (1939)
• Clarissa (1941)
• Doctor Crippen (1942)
• Voyage Without Hope (1943)
• Love's Carnival (1955)

• Manolescu, Prince of Thieves (1933)
• Wozzeck (1947)
• Semmelweis – Retter der Mütter (1950)
• Die Sonnenbrucks (1951)
• Call Over the Air (1951)
• Karriere in Paris (1952)
• Daughter of the Regiment (1953)

• McGilligan, Patrick. Alfred Hitchcock: A Life in Darkness and Light. HarperCollins, 2004.

• Georg C. Klaren at IMDb