Semyon Grigoryevich Morozov (Russian: Семён Григорьевич Морозов; 25 September [O.S. 12 September] 1914, Taganrog – 23 February 1943, Taganrog) was commissar of the Taganrog antifascist underground organization (1941–1943). He was posthumously awarded the Hero of the Soviet Union title. One of the streets in Taganrog was named after Semyon Morozov. A brass plaque is set on the wall of the house where he lived.