United Left (Spain)

United Left
Izquierda Unida
General CoordinatorAntonio Maíllo
FoundedApril 1986 (as coalition)
2 November 1992 (as party federation)
Youth wingÁrea de Juventud de Izquierda Unida
LGBT wingALEAS
Membership (2023) 18,000
IdeologyCommunism
Socialism
Republicanism
Political positionLeft-wing to far-left
National affiliationThe Left (2009–2014)
Plural Left (2011–2015)
Plural Left (2014–2019)
Popular Unity (2015–2016)
Unidas Podemos (2016–2023)
Sumar (since 2023)
European affiliationParty of the European Left
International affiliationIMCWP
Colours  Red
Congress of Deputies
5 / 350
Spanish Senate
0 / 266
European Parliament
0 / 61
Regional Parliaments
10 / 1,268
Local Government
1,678 / 67,515
Website
izquierda-unida.es

United Left (Spanish: Izquierda Unida [iθˈkjeɾðawˈniða], IU) is a federative political movement in Spain that was first organized as a coalition in 1986, bringing together several left-wing political organizations, grouped primarily around the Communist Party of Spain.

IU was founded as an electoral coalition of seven parties, but the Communist Party of Spain (PCE) is the only remaining integrated member of the IU at the national level. Despite that, IU brings together other regional parties, political organizations, and independents. It currently takes the form of a permanent federation of parties.

IU took part in the Unidas Podemos coalition and the corresponding parliamentary group in the Congreso de los Diputados between 2016 and 2023. Since January 2020, it participated for the first time in a national coalition government, with one minister. For the 2023 general election, IU took part in the Sumar platform.