National political formations of Spain

People's Party (Spain)
Partido Popular
Founded 20 January 1989; 27 years ago
Website:- www.pp.es

Spanish Socialist Workers' Party
Partido Socialista Obrero Español
Founded 2 May 1879 (137 years ago)
Website:- http://www.psoe.es/

Unidos Podemos
(United We Can)
Founded 9 May 2016
Website:- http://lasonrisadeunpais.es/

Citizens (Spanish political party)
Ciudadanos
Founded 7 June 2005 (CC)
Founded 4 March 2006 (C's)
Website:- http://www.ciudadanos-cs.org/

Animalist Party Against Mistreatment of Animals
Partido Animalista Contra el Maltrato Animal
Founded February 24, 2003
Website:- http://www.pacma.es/

Union, Progress and Democracy
Unión Progreso y Democracia
Founded 26 September 2007
Website:-http://www.upyd.es/

Most voted political parties in the 2016 Spanish general election

Republican Left of Catalonia–Catalonia Yes
Esquerra Republicana de Catalunya–Catalunya Sí
Founded 2011
Website:- http://www.esquerra.cat/

Basque Nationalist Party
Euzko Alderdi Jeltzalea (Basque)
Partido Nacionalista Vasco (Spanish)
Parti Nationaliste Basque (French)
Founded 1895
Website:- http://www.eaj-pnv.eus/

Animalist Party Against Mistreatment of Animals
Partido Animalista Contra el Maltrato Animal
Founded February 24, 2003
Website:- http://www.pacma.es/

Basque Country Unite
Euskal Herria Bildu
Founded 2011
Website:- http://www.ehbildu.eus/

Canarian Coalition
Coalición Canaria
Founded February 1993
Website:- http://www.coalicioncanaria.org/

Other political parties represented in regional parliaments

Unitarian Candidacy of Workers
Candidatura Unitaria de Trabajadores
Founded 1979
Website:- http://lacut.net/

Aragonese Party
Partido Aragonés
Founded January 1978
Website:- http://www.partidoaragones.com/

Asturias Forum
Foro Asturias
Founded 19 January 2011
Website:- http://www.foroasturias.es/

More for Majorca
Més per Mallorca
Founded 2010
Website:- http://www.mespermallorca.cat/

El PI – Proposta per les Illes
(Catalan for "PI – Proposal for the Isles"; pi can also mean pine or pi in Catalan)
Founded November 2, 2012
Website:- http://www.elpi.cat/

Regionalist Party of Cantabria
Partido Regionalista de Cantabria
Founded 1978
Website:- http://www.prc.es/

Leonese People's Union
Unión del Pueblo Leonés
Founded 1986
Website:- http://www.upl.es/

Together for Yes
Junts pel Sí
Founded 15 July 2015 (announced)
Website:- http://www.juntspelsi.cat/

Catalunya Sí que es Pot
(Catalan for Catalonia Yes We Can)
Founded 15 July 2015
Website:- http://catalunyasiqueespot.cat/

Popular Unity Candidacy
Candidatura d'Unitat Popular
Founded 1986
Website:- http://cup.cat/

Galician Nationalist Bloc
Bloque Nacionalista Galego
Founded 1982
Website:- http://bng.gal/

Galician Alternative of the Left
Alternativa Galega de Esquerda
Founded September 11, 2012
Website:- http://www.age.gal/

Cerna (political organization)
(Heartwood in English)
Founded 2014
Website:- http://www.cerna.org/

Navarrese People's Union
Unión del Pueblo Navarro
Founded 1979
Website:- http://www.upn.org/

Geroa Bai
(Basque: Yes to the Future)
Founded 2011
Website:- http://www.geroabai.com/

Izquierda-Ezkerra
Founded 2011
Website:- http://www.izquierda-ezkerra.org/

Commitment Coalition
Coalició Compromís
Founded January 25, 2010
Website:- http://www.compromis.net/

Political parties running for the Spanish general election, 2011

Andecha Astur
Founded 1990
Website:- http://www.andecha.org/

Anticapitalistas
(Catalan: Anticapitalistes, Euskera: Antikapitalistak, English language: Anticapitalists),
Founded 1995 (as Espacio Alternativo)
Founded 2009 (as Izquierda Anticapitalista)
Founded 2015 (as Anticapitalistas)
Website:- http://www.anticapitalistas.org/

Communist Party of the Peoples of Spain
Partido Comunista de los Pueblos de España
Founded 15 December 1984
Website:- http://www.pcpe.es/

Communist Unification of Spain
Unificación Comunista de España, (UCE)
Founded 1973
Website:- http://www.deverdaddigital.com/
Website:- http://www.chispasrevolucionarias.com/

Equo
EQUO
Founded 4 June 2011
Website:- http://www.partidoequo.es/

Escaños en Blanco

España 2000
(E-2000)
Founded 2000
Website:- http://www.esp2000.org/

Falange Española de las Jons
(FE de las jons)

For a Fairer World
(PUM+J)

Foro Centro y Democracia (CYD)

Humanist Party (Spain)
Founded 1984
Website:- Not Available

Internet Party (Spain)
Founded 2009
Website:- http://partidodeinternet.es/

Partido de Castilla y León (PCAL)

Partido Regionalista por Andalucía Oriental (PRAO)

Animalist Party Against Mistreatment of Animals
Partido Animalista Contra el Maltrato Animal
Founded February 24, 2003
Website:- http://www.pacma.es/

People's Party
Partido Popular
Founded 20 January 1989; 27 years ago
Website:- http://www.pp.es/

Pirates of Catalonia
Pirates de Catalunya
Founded 4 October 2010
Website:- http://pirata.cat/

Platform for Catalonia
Plataforma per Catalunya (Catalan)
Founded 5 April 2002
Website:- http://www.plataforma.cat/

Podemos (not the same as Podemos)

Regionalist Party of Cantabria
Partido Regionalista de Cantabria
Founded 1978
Website:- http://www.prc.es/

Republican Left of Catalonia
Esquerra Republicana de Catalunya
Founded March 19, 1931
Website:- http://www.esquerra.cat/

Republican Left of the Valencian Country
Esquerra Republicana del País Valencià
Founded 2000
Website:- http://locals.esquerra.cat/paisvalencia/

Republicanos (es) (RPS)

Solidaridad y Autogestión Internacionalista (SAIn) (es)

Unidá
Website:- Not Available

Spanish Socialist Workers' Party
Partido Socialista Obrero Español
Founded 2 May 1879 (137 years ago)
Website:- http://www.psoe.es/

Union, Progress and Democracy
Unión Progreso y Democracia
Founded 20 January 1989; 27 years ago
Website:- http://www.upyd.es/

United Left
Izquierda Unida
Founded April 1986
Website:- http://www.izquierda-unida.es/

Political parties without any representation

Estat Català
Founded 1922
Website:- http://www.estat-catala.net/

Regionalist Party of the Leonese Country
Partido Regionalista del País Leonés
Founded 1980
Website:- http://prepal-pais-leones.webnode.es/

Confederation of the Greens
Confederación de los Verdes
Founded 23 September 1984
Website:- http://www.verdes.es/

Partíu Asturianista
Founded 1985
Website:- http://www.asturianista.as/

Galician People's Front
Frente Popular Galega
Founded 1986
Website:- http://frentepopular.gl/

Batzarre
Assembly
Founded 1987
Website:- http://www.batzarre.org/

Andecha Astur
Founded 1990
Website:- http://www.andecha.org/

Regionalist Unity of Castile and León
Unidad Regionalista de Castilla y León
Founded 1992
Website:- http://www.unidadregionalista.es/

Asturian Left
Izquierda Asturiana
Founded 1992
Website:- http://www.ias.as/

Authentic Falange
Falange Auténtica
Founded April 30, 2002; 14 years ago
Website:- http://www.falange-autentica.es/

Castilian Left
Izquierda Castellana
Founded 2002
Website:- http://www.izca.net/

Pirate Party
Partido Pirata (PIRATA)
Founded 25 July 2011
Website:- http://www.partidopirata.es/

Land Party
Partido da Terra
Founded 1992
Website:- http://www.partidodaterra.net/

Overwhelmed and Annoyed Citizens (Spain)

Citizens for Blank Votes
Website:- http://www.ciudadanosenblanco.com/

Herritarren Zerrenda
List of Fellow Citizens
Lista de Conciudadanos
Founded 2004
Website:- Not Available

The Greens of the Madrid Community
( Los Verdes de la Comunidad de Madrid)

Cannabis Party (Spain)
Partido Cannabis por la Legalización y la Normalización
Cannabis Party for Legalisation and Normalisation
Founded end of 2003
Website:- http://www.unidadregionalista.es/

Party of the Democratic Karma
Founded by the publishers of the magazine Karma dice (Karma says), a satirical publication.
Website:- Not Available

Vox (Spanish political party)
Founded 17 December 2013
Website:- http://www.voxespana.es/

Por un Mundo más Justo ?

Por una Europa de los Trabajadores y los Pueblos - No a la Constitucion Europea - coalition of PCPE and LI-LIT.CI ?

Prepal ?

Unidad Regionalista Asturiana ?

Unión Centrista Liberal ?

Zornotza Eginez (local) ?

Agrupación de Electores Independientes Zamoranos ?

Alianza para el Desarrollo y la Naturaleza ?

Alianza por la Unidad Nacional ?

Bloque por Asturies ?

Coalición Asturiana ?

Coalición Europea ?

Coalición Liberal ? - European Liberal, Democrat and Reform Party

Extremadura Unida ?

Iniciativa Socialista de Izquierdas ?

Los Parados ?

Los Verdes Ecopacifistas?

Lucha Internacionalista ?

Nueva Izquierda Verde ?

Nuevo Partido por la Democracia?

Partido de Acción Socialista ? (PASOC)

Partido de los Autónomos Jubilados y Viudas ?

Partido del Bierzo ?

Partido de Internet ?

Partido de la Libertad Individual ?

Partido Demócrata Español ?

Partido Familia y Vida ?

Partido Mutuo Apoyo Romántico ?

Partido Obrero Socialista Internacionalista ?

Social conservatism parties

Spanish Alternative
Alternativa Española
Founded 21 April 2003
Website:- http://www.alternativaespanola.com/

Communist parties

Communist Unification of Spain
Unificación Comunista de España, (UCE)
Founded 1973
Website:- www.de_verdad_digital.com
Website:- www.chispasrevolucionarias.com

Spanish Communist Workers' Party
Partido Comunista Obrero Español
Founded 1973
Website:- http://www.pcoe.net/

Communist Party of the Peoples of Spain
Partido Comunista de los Pueblos de España
Founded 15 December 1984
Website:- http://www.pcpe.es/

Revolutionary Socialism (Spain)
(Socialismo Revolucionario)
Founded 21 April 2003
Website:- http://www.socialismorevolucionario.org//

Nationalist parties

Cantabrian Nationalist Council
Conceju Nacionaliegu Cántabru
Founded 1995
Website:- http://conceju.com/

National Democracy
Democracia Nacional
Founded 1995
Website:- http://democracianacional.org/

Republican Social Movement
Movimiento Social Republicano
Founded 1999
Website:- http://www.msr.org.es/

Illegal parties

Communist Party of the Basque Homelands
(Basque: Euskal Herrialdeetako Alderdi Komunista, EHAK; Spanish: Partido Comunista de las Tierras Vascas, PCTV)
Founded 27 July 2002
Website:- http://www.ehak.org/

Defunct major parties

Socialist Party of Majorca
Partit Socialista de Mallorca
Founded 1976
Website:- http://www.psm-entesa.cat/

Valencian Union
Unió Valenciana
Founded August 1982
Website:- http://www.uniovalenciana.org/