Semyon Grigoryevich Morozov (Russian: Семён Григорьевич Морозов; 25 September [O.S.
12 September] 1914 – 23 February 1943) was commissar of the Taganrog antifascist underground organization (1941–1943).
Semion Morozov studied at the Taganrog school No 15 for 7 years.
In 1938, he graduated from the High Communist Agricultural School in Rostov-on-Don and was appointed chief of the Department of Agitation and Propaganda at the District Committee of Komsomol (Young Communist League) in the Kazanskaya stanitsa (Cossack village) of the Verkhnedonskoy District of the Rostov Oblast.
Then he was appointed the chief of the department of propaganda and agitation at the City Committee of Komsomol.