Fritz Emrich (19 August 1894 – 27 July 1947) was a German trade unionist, Communist Party official, and politician who served as the National Leader of the Revolutionäre Gewerkschafts Opposition from June to October 1930 and in the Reichstag from 1932 to 1933.

After his release, Emrich worked as a conscript in a dry cleaning factory and was active in the Berlin underground organization of the KPD.

During World War II, Emrich was a member of the Saefkow-Jacob-Bästlein Organization and played a key role in building up its network.

[4][5] After Anton Saefkow's arrest in July 1944, Emrich managed to live illegally, completely on his own, in the capital of the declining German Reich until the victory of the Red Army in May 1945.

After the war, in May 1945, Emrich briefly served as head of the Friedrichshagen police station and soon after in a leading position in the headquarters of the Volkspolizei in Berlin.