The All-Union Leninist Young Communist League, usually known as Komsomol, was a political youth organization in the Soviet Union. It is sometimes described as the youth division of the Communist Party of the Soviet Union (CPSU), although it was officially independent and referred to as "the helper and the reserve of the CPSU".

The Vladimir Lenin All-Union Pioneer Organization, abbreviated as the Young Pioneers, was a compulsory youth organization of the Soviet Union for children and adolescents ages 9–14 that existed between 1922 and 1991.