Hitler Umanath is an Indian Tamil-language film released on 26 January 1982, directed by P. Madhavan and based on Mahendran's play of the same name.
The film stars Sivaji Ganesan, K. R. Vijaya, Sathyaraj, and Suruli Rajan in key roles.
The story revolves around Umanath, a mild-mannered man whose mustache resembles Adolf Hitler's, leading to amusement among his workplace colleagues. Inspired by Hitler's charisma, Umanath adopts a similar attitude at work, becoming confident and powerful, but neglecting sleep and his family, including his wife.
Umanath's daughter marries a young man who considers him an enemy, causing trouble for Umanath, who is still proud of his workplace leadership. The film explores the consequences of Umanath's actions as he navigates his personal and professional life.