The Republican Left of Catalonia (Catalan: Esquerra Republicana de Catalunya [əsˈkɛrə rəpuβliˈkanə ðə kətəˈluɲə], ERC; generically branded as Esquerra Republicana) is a pro-Catalan independence, social democratic political party in the Spanish autonomous community of Catalonia, with a presence also in Valencia, the Balearic Islands and the French department of Pyrénées-Orientales (Northern Catalonia). It is also the main sponsor of the movement for independence from France and Spain in the territories known as Catalan Countries, focusing in recent years on the creation of a Catalan Republic in Catalonia-proper.
ERC members sit in the unicameral Catalan Parliament, which exercises devolved powers within Spain. The party also contests and wins elections for seats in both houses of the Spanish Cortes Generales (the national parliament), as well as the European Parliament, where it sits as a member of the European Free Alliance. In 2022, ERC had 9,047 members. It is headquartered in Barcelona. Currently, its president is Oriol Junqueras and its secretary-general is Elisenda Alamany.