Who led the communist movement in Russia?

Answer 1

Vladimir Lenin led the Communist movement in Russia. There were other Marxist leaders such as Julius Martov, but they were not as radical as Lenin and did not start the October Revolution that put Lenin and his Bolsheviks (later renamed Communists) in power.

Answer 2

You probably mean Vladimir I. Lenin; however, although he did establish communism in Russia, he had nothing to do with the overthrow of the Czar. The Czar was overthrown in the February Russian Revolution of 1917, while Lenin was in exile in Switzerland. That revolution was over practically before Lenin even heard about it.

He did lead the October Revolution, which overthrew the new Provisional Government and establish communism in Russia.