Emil Alfred Fritz Lange (23 November 1898, Berlin – 16 September 1981) was a German communist politician and resistance fighter during the Nazi era.
Lange attended the Siemens Oberrealschule in the Berlin suburb of Charlottenburg from 1904 to 1912 and from 1912 to 1917, the Präparandenanstalt and the teacher-training program in Neuruppin.
In 1924, he was let go from his job and became a leading functionary of the Rotfrontkämpferbund from 1925-1928, as well as the district representative from Neukölln and a city delegate from Berlin from 1925-1933.
On 1 December 1942, he and Martin Weise were arrested, and on 8 October 1943 he was convicted in the second Senate of the Reichskrieggericht, the highest military court during the Nazi era.
Afterwards he was head of the Zentralen Kontrollkommission ("Central Control Commission") of the German Economic Commission and from 1949 to 1954, of the Zentrale Kommission für Staatliche Kontrolle, an executive organ of the Sozialistische Einheitspartei Deutschlands (SED) in the Soviet occupation zone, later the GDR.