The Union of Communist Parties – Communist Party of the Soviet Union (UCP–CPSU)[a] is a federation of communist parties in the post-Soviet states founded in 1993.

[1] Gennady Zyuganov has been the organisation's chairman since 2001.

He replaced Oleg Shenin,[1] who split off a part of the UCP–CPSU as the "Communist Party of the Soviet Union".

The structure of the UCP-CPSU consists of 18 communist parties within the former Soviet Union.

[2]