Socialist Union of Catalonia (in

Catalan Catalan may refer to: Catalonia From, or related to Catalonia: * Catalan language, a Romance language * Catalans, an ethnic group formed by the people from, or with origins in, Northern or southern Catalonia Places * 13178 Catalan, asteroid #1 ...

: ''Unió Socialista de Catalunya'') was the socialist

political party A political party is an organization that coordinates candidates to compete in a particular country's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific ideological or p ...

Catalonia Catalonia (; ca, Catalunya ; Aranese Occitan: ''Catalonha'' ; es, Cataluña ) is an autonomous community of Spain, designated as a '' nationality'' by its Statute of Autonomy. Most of the territory (except the Val d'Aran) lies on the no ...

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...

. USC was formed through a split in

Spanish Socialist Workers' Party The Spanish Socialist Workers' Party ( es, Partido Socialista Obrero Español ; PSOE ) is a social-democraticThe PSOE is described as a social-democratic party by numerous sources: * * * * political party in Spain. The PSOE has been in gov ...

in 1923. The main leader of USC was Joan Comorera. USC led the '' Unió General de Sindicats Obrers de Catalunya'' (UGSOC). During the Spanish Republic, the USC was allied with the main Catalan party, ERC (

Republican Left of Catalonia The Republican Left of Catalonia ( ca, Esquerra Republicana de Catalunya, ERC; ; generically branded as ) is a pro-Catalan independence, social-democratic political party in the Spanish autonomous community of Catalonia, with a presence also ...

) in every election. In 1936 USC merged with other forces to form the

Unified Socialist Party of Catalonia The Unified Socialist Party of Catalonia ( ca, Partit Socialista Unificat de Catalunya, PSUC) was a Communism, communist political party active in Catalonia between 1936 and 1997. It was the Catalan branch of the Communist Party of Spain and the o ...

. At that time USC had around 5000 members.

References

Political parties in Catalonia {{Catalonia-stub