The Third Man
- annos singulos: 1949
- Patriam: United Kingdom
- genus: Thriller, Mystery
- Studio: London Films Productions
- keyword: staged death, black market, cemetery, investigation, soviet military, prater, british army, austria, cover-up, film noir, foot chase, vienna, austria, sewer, missing person, post world war ii, ferris wheel, grim, penicillin, forged passport, ominous
- Director: Carol Reed
- cast: Joseph Cotten, Alida Valli, Trevor Howard, Orson Welles, Paul Hörbiger, Ernst Deutsch