Efim Naumovich Gorodetsky (or Gorodetskii; Russian: Городецкий Ефим Наумович; 29 January 1907 – 20 June 1993) was a Soviet historian and a leading authority on the historiography of the October Revolution and the formation of the Soviet state. He received his advanced education at Moscow State University (MSU) where he also taught. He was awarded the State Prize of the USSR in 1943 for his part in a history of the Russian Civil War and produced and edited a number of collections of primary sources relating to Russian and Soviet history.