The All-Union Party «Union of Communists» (SK; Russian: Всесоюзная партия «Союз коммунистов»; СК; Vsesoyuznaya partiya «Soyuz kommunistov», SK) is a communist party created in 1991 in the USSR, operating in the territory of the countries of the former Soviet Union, the second communist party created after the dissolution of the Communist Party of the Soviet Union (CPSU). A distinctive feature of the SK was that its organizational work from the very beginning was focused not on the formation of its own structures, but on establishing contacts with supporters of the revival of the CPSU.