Partido Comunista is Spanish and Portuguese for Communist Party. Therefore, it may refer to any of the following political parties:
Angolan Communist PartyArgentine Workers' Communist PartyBolshevik Communist PartyBrazilian Communist PartyBrazilian Communist Party (1992)Chilean Communist Party (Proletarian Action)Clandestine Colombian Communist PartyColombian Communist PartyColombian Communist Party - MaoistCommunist Party (Marxist-Leninist) of BoliviaCommunist Party (Marxist-Leninist) of PanamaCommunist Party of AndalusiaCommunist Party of Aragon (1980)Communist Party of ArgentinaCommunist Party of Argentina (Extraordinary Congress)Communist Party of BoliviaCommunist Party of Bolivia (Marxist-Leninist)Communist Party of BrazilCommunist Party of Castile – La ManchaCommunist Party of ChileCommunist Party of Colombia (Marxist-Leninist)Communist Party of Costa RicaCommunist Party of CubaCommunist Party of EcuadorCommunist Party of Ecuador - Red SunCommunist Party of El SalvadorCommunist Party of ExtremaduraCommunist Party of Guatemala (disambiguation), various organizationsCommunist Party of HondurasCommunist Party of LabourCommunist Party of MadridCommunist Party of Mexico (Marxist-Leninist)Communist Party of MozambiqueCommunist Party of National LiberationCommunist Party of NicaraguaCommunist Party of PanamaCommunist Party of PeruCommunist Party of Peru (Marxist-Leninist)Communist Party of Peru - Red FatherlandCommunist Party of Portugal (in Construction)Communist Party of Portugal (Marxist-Leninist)Communist Party of Portugal (Marxist-Leninist) (1974)Communist Party of Spain (disambiguation), various organizationsCommunist Party of the Balearic IslandsCommunist Party of the MenadoresCommunist Party of the Peoples of SpainCommunist Party of the Portuguese Workers / Reorganizative Movement of the Party of the ProletariatCommunist Party of the Region of MurciaCommunist Party of the Valencian CountryCommunist Party of the Valencian Country - Revolutionary MarxistCommunist Party of UruguayCommunist Party of VenezuelaCommunist Party (Reconstructed)Communist Party - Red StarDominican Communist PartyGuatemalan Party of Labour - Communist PartyInternational Communist Party (Dominican Republic)Libertarian Communist Party (Brazil)Libertarian Communist Party (Spain)Marxist-Leninist Communist Party of EcuadorMarxist-Leninist Communist Party of HondurasMexican Communist PartyParaguayan Communist PartyParaguayan Communist Party (Marxist-Leninist)Peruvian Communist PartyPeruvian Communist Party (Red Flag)Portuguese Communist PartyPuerto Rican Communist PartyRevolutionary Communist Party of ArgentinaRevolutionary Communist Party (Brazil)Revolutionary Communist Party (Chile)Revolutionary Communist Party (Peru)Revolutionary Communist Party - Red TrenchRevolutionary Communist Party (Spain)Revolutionary Communist Party (Working Class)Spanish Communist PartySpanish Communist Workers' Party (1921)Spanish Communist Workers' Party (1973)Unified Communist Party of SpainWorkers' Communist Party (Spain) reference
Principia Cathedra the principals of the chair, from Latin cathedra, as a seat of authority and that which a cathedral's purpose is to indicate the location of such chair.