The Living Unified Socialist Party of Catalonia (Catalan: PSUC viu, lit. '"Living PSUC"') is a political party in Catalonia, Spain. PSUC viu emerged from factional fighting within the Unified Socialist Party of Catalonia (PSUC) in the mid-1990s. Since 1936, PSUC has been the Catalan referent of the Communist Party of Spain (PCE). PSUC and PCE exist as parallel parties, and PCE does not organize any branch of its own in Catalonia.