| 
          
          
            ARM
          
          
         | 
        Agrupación Ruiz-Mateos 
           
          Ruiz-Mateos List
         | 
        
          
          1989–1989
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            APP
          
          
         | 
        Alianza-Partido Popular 
           
          People's Alliance-Party
         | 
        
          
          1977–2019
          
         | 
        
          
            45.2%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            Bai
          
          
         | 
        Bai 
           
          Yes
         | 
        
          
          2004–2011
          
         | 
        
          
            0.2%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            BNG
          
          
         | 
        Bloque Nacionalista Galego 
           
          Galician Nationalist Bloc
         | 
        
          
          1996–2019
          
         | 
        
          
            1.3%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CUP
          
          
         | 
        Candidatura d'Unitat Popular 
           
          Popular Unity Candidacy
         | 
        
          
          2019–2019
          
         | 
        
          
            1.0%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CDS
          
          
         | 
        Centró Democrático y Social 
           
          Democratic and Social Centre
         | 
        
          
          1982–1994
          
         | 
        
          
            9.3%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            Cs
          
          
         | 
        Ciudadanos – Partido de la Ciudadanía 
           
          Citizens -- Party of the Citizenry
         | 
        
          
          2014–2019
          
         | 
        
          
            15.9%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CC
          
          
         | 
        Coalición Canaria 
           
          Canary Coalition
         | 
        
          
          1993–2019
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            EDC
          
          
         | 
        Coalición Electoral Equipo de la Democracia Cristiana 
           
          Electoral Coalition of Christian Democratic Team
         | 
        
          
          1977–1977
          
         | 
        
          
            1.2%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CNE
          
          
         | 
        Coalicion Nacionalista-Europea 
           
          European-Nationalist Coalition
         | 
        
          
          1989–2004
          
         | 
        
          
            3.2%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CEP
          
          
         | 
        Coalición por la Europa de los Pueblos 
           
          For the Europe of the Peoples
         | 
        
          
          1987–2014
          
         | 
        
          
            5.4%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CAV
          
          
         | 
        Compromís | A la valenciana 
           
          Compromise | A la valenciana
         | 
        
          
          2015–2019
          
         | 
        
          
            2.7%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CV
          
          
         | 
        Confederación de los Verdes 
           
          Confederation of the Greens
         | 
        
          
          1989–1989
          
         | 
        
          
            1.0%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CDCJxCat
          
          
         | 
        Convergència Democràtica | Junts per Catalunya 
           
          Democratic Convergence | Together for Catalonia
         | 
        
          
          2015–2019
          
         | 
        
          
            2.2%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            CiU
          
          
         | 
        Convergència i Unió 
           
          Convergence and Union
         | 
        
          
          1977–2011
          
         | 
        
          
            5.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            ECP
          
          
         | 
        En Comú Podem 
           
          In Common We Can
         | 
        
          
          2015–2019
          
         | 
        
          
            3.7%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            EMGCE
          
          
         | 
        En Marea | Grupo Común da Esquerda 
           
          En Masse | Common Group of the Left
         | 
        
          
          2015–2019
          
         | 
        
          
            1.6%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            Equo
          
          
         | 
        Equo 
           
          Equo
         | 
        
          
          2011–2019
          
         | 
        
          
            1.5%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            ERC
          
          
         | 
        Esquerra Republicana de Catalunya 
           
          Republican Left of Catalonia
         | 
        
          
          1977–2019
          
         | 
        
          
            3.9%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            EPV
          
          
         | 
        Europa de los Pueblos – Verdes 
           
          Europe of the People -- The Greens
         | 
        
          
          2004–2019
          
         | 
        
          
            2.5%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            EHB
          
          
         | 
        Euskal Herria Bildu 
           
          Basque Country Unite
         | 
        
          
          2015–2019
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            EA
          
          
         | 
        Eusko Alkartasuna 
           
          Basque Solidarity
         | 
        
          
          1989–2011
          
         | 
        
          
            1.4%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            EE
          
          
         | 
        Euzkadiko Ezkerra 
           
          Basque Left
         | 
        
          
          1977–1989
          
         | 
        
          
            0.5%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            HB
          
          
         | 
        Herri Batasuna 
           
          United People
         | 
        
          
          1979–1999
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            IISP
          
          
         | 
        Iniciativa Internacionalista – La Solidaridad entre los Pueblos 
           
          Internationalist Initiative -- Solidarity between Peoples
         | 
        
          
          2009–2009
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            IP
          
          
         | 
        Izquierda de los Pueblos 
           
          Left of the Peoples
         | 
        
          
          1987–1999
          
         | 
        
          
            1.9%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            LVE
          
          
         | 
        Los Verdes Ecologistas 
           
          Greens Ecologists
         | 
        
          
          1989–1989
          
         | 
        
          
            1.0%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PACMA
          
          
         | 
        Partido Animalista Contra el Maltrato Animal 
           
          Animalist Party Against Mistreatment to Animals
         | 
        
          
          2014–2019
          
         | 
        
          
            1.2%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PAR
          
          
         | 
        Partido Aragonés Regionalista 
           
          Aragonese Regionalist Party
         | 
        
          
          1977–1993
          
         | 
        
          
            0.6%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PCEIU
          
          
         | 
        Partido Communista | Izquierda Unida 
           
          Communist Party | United Left
         | 
        
          
          1977–2015
          
         | 
        
          
            10.8%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PTEUC
          
          
         | 
        Partido de los Trabajadores de España-Unidad Comunista 
           
          Workers' Party of Spain -- Communist Unity
         | 
        
          
          1986–1989
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PTE
          
          
         | 
        Partido del Trabajo de España 
           
          Party of Labour of Spain
         | 
        
          
          1979–1979
          
         | 
        
          
            1.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PNV
          
          
         | 
        Partido Nacionalista Vasco – Euzko Alderdi Jeltzalea 
           
          Basque Nationalist Party
         | 
        
          
          1977–2019
          
         | 
        
          
            1.9%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PSOE
          
          
         | 
        Partido Socialista Obrero Español 
           
          Spanish Socialist Workers Party
         | 
        
          
          1977–2019
          
         | 
        
          
            48.3%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PSP
          
          
         | 
        Partido Socialista Popular 
           
          People's Socialist Party
         | 
        
          
          1977–1977
          
         | 
        
          
            4.5%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            PA
          
          
         | 
        Partidu Andalucista 
           
          Andalusian Party
         | 
        
          
          1979–2004
          
         | 
        
          
            1.8%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            P
          
          
         | 
        Podemos 
           
          We Can
         | 
        
          
          2014–2019
          
         | 
        
          
            13.4%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            UP
          
          
         | 
        Unidas Podemos 
           
          United We Can
         | 
        
          
          2019–2019
          
         | 
        
          
            10.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            UCD
          
          
         | 
        Unión de Centro Democrático 
           
          Union of the Democratic Centre
         | 
        
          
          1977–1982
          
         | 
        
          
            35.0%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            UN
          
          
         | 
        Unión Nacional 
           
          National Union
         | 
        
          
          1979–1979
          
         | 
        
          
            2.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            UPyD
          
          
         | 
        Unión Progreso y Democracia 
           
          Union, Progress and Democracy
         | 
        
          
          2008–2014
          
         | 
        
          
            4.8%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            UV
          
          
         | 
        Union Valenciana 
           
          Valencian Union
         | 
        
          
          1986–1996
          
         | 
        
          
            0.7%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         | 
        
      
      
      
        | 
          
          
            Vox
          
          
         | 
        Vox 
           
          Voice
         | 
        
          
          2014–2019
          
         | 
        
          
            15.1%
          
         | 
        
        
          
          
          
          
          
         | 
        
          
         |