List of left-wing political parties
The following is a list of left-wing political parties. It includes parties from the centre-left to the far and ultra left.
Active
A
- Communist Party of Abkhazia
- Social-Democratic Party of Abkhazia
- Afghanistan Liberation Organization
- Communist Party of Afghanistan
- National United Party of Afghanistan
- Pashtoons Social Democratic Party
- Solidarity Party of Afghanistan
- Watan Party of Afghanistan
- Åland Social Democrats
- Albanian Socialist Alliance Party
- Albanian Workers Movement Party
- Communist Party of Albania
- Communist Party of Albania 8 November
- G99
- Green Party of Albania
- Reorganised Party of Labour of Albania
- Social Democracy Party of Albania
- Social Democratic Party of Albania
- Socialist Movement for Integration
- Socialist Party of Albania
- Algerian Party for Democracy and Socialism
- Arab Socialist Ba'ath Party of Algeria
- Berber Socialism and Revolution Party
- Democratic and Social Movement
- National Liberation Front
- Socialist Forces Front
- Socialist Workers Party
- Workers' Party
- Social Democratic Party
- Social Democracy and Progress
- Greens of Andorra
- Liberal Socialist Party
- MPLA
- Party of the Angolan Communist Community
- Social Democratic Party
- Social Renewal Party
- United Progressive Party
- Authentic Socialist Party
- Broad Front
- Civic Front for Santiago
- Committee for the Reconstruction of Revolutionary Communism
- Communist Party of Argentina
- Communist Party of Argentina
- Freemen of the South Movement
- Front for Change/Social Pole
- Humanist Party
- Intransigent Party
- Liberation Party
- Radical Civic Union
- Revolutionary Communist Party of Argentina
- Self-determination and Freedom
- Socialist Left
- Socialist Party
- Socialist Workers' Party
- Solidarity and Equality
- United Socialist Workers' Party
- Workers' Party
- Workers' Socialist Movement
- Armenian Communist Party
- Armenian Revolutionary Federation
- Citizen's Decision
- National Progressive Party of Armenia
- Progressive United Communist Party of Armenia
- Social Democrat Hunchakian Party
- United Communist Party of Armenia
- United Labour Party
- Armenian Revolutionary Federation
- National Revival
- Communist Party of Artsakh
- People's Electoral Movement
- Australian Greens
- Australian Labor Party
- Communist Party of Australia
- Communist Party of Australia
- Socialist Alliance
- Socialist Alternative
- Socialist Equality Party
- Socialist Party
- Solidarity
- Victorian Socialists
- Communist Party of Austria
- Party of Labour of Austria
- Der Wandel
- Social Democratic Party of Austria
- Socialist Left Party
- Workers Viewpoint
- Azerbaijan Communist Party
- Communist Party of Azerbaijan
- Communist Party of Azerbaijan
- Coordination Council of Leftist Forces
- United Communist Party of Azerbaijan
B
- Progressive Liberal Party
- National Democratic Action Society
- National Justice Movement
- National Liberation Front – Bahrain
- Nationalist Democratic Assembly
- Progressive Democratic Tribune
- Awami League
- Communist Party of Bangladesh
- Communist Party of Bangladesh
- Communist Party of Bangladesh
- Communist Party of Bangladesh
- Jatiya Gana Front
- Jatiya Samajtantrik Dal
- Jatiya Samajtantrik Dal-JSD
- Maoist Bolshevik Reorganisation Movement of the Purba Banglar Sarbahara Party
- Purba Banglar Sarbahara Party
- Purbo Banglar Communist Party
- Revolutionary Workers Party of Bangladesh
- Sramik Krishak Samajbadi Dal
- Socialist Party of Bangladesh
- United Communist League of Bangladesh
- Workers Party of Bangladesh
- Baloch Republican Party
- Barbados Labour Party
- Democratic Labour Party
- Agrarian Party
- Belarusian Green Party
- Belarusian Labour Party
- Belarusian Left Party "A Just World"
- Belarusian Social Democratic Assembly
- Belarusian Social Democratic Party
- Belarusian Social Democratic Party
- Belarusian Socialist Sporting Party
- Communist Party of Belarus
- Republican Party of Labour and Justice
- Social Democratic Party of Popular Accord
- Communist Party
- Ecolo
- Groen
- International Workers' League
- Left Socialist Party
- Parti Socialiste
- Red!
- Revolutionary Communist League
- Socialistische Partij Anders
- Vivant
- Workers' Party of Belgium
- Belize Progressive Party
- *Vision Inspired by the People
- Communist Party of Benin
- Social Democratic Party
- Progressive Labour Party
- Bhutan Kuen-Nyam Party
- Druk Nyamrup Tshogpa
- Bhutan Communist Party
- Bhutan Peoples' Party
- Communist Party of Bolivia
- Communist Party of Bolivia - Marxist Leninist Maoist
- Free Bolivia Movement
- Movement for Socialism
- Movement for Sovereignty
- Movement Without Fear
- Pachakuti Indigenous Movement
- People's Revolutionary Front
- Revolutionary Left Front
- Revolutionary Left Movement
- Revolutionary Liberation Movement Tupaq Katari
- Revolutionary Workers' Party
- Socialist Aymara Group
- Socialist Party-1
- Workers' Socialist Movement
- Bonaire Democratic Party
- Communist Party
- Social Democratic Party of Bosnia and Herzegovina
- Workers' Communist Party of Bosnia and Herzegovina
- Botswana Alliance Movement
- Botswana Congress Party
- Botswana National Front
- International Socialist Organization
- MELS Movement of Botswana
- Brazilian Communist Party
- Brazilian Socialist Party
- Citizenship
- Communist Party of Brazil
- Democratic Labour Party
- Green Party
- Labour Cause's Party
- National Mobilization Party
- Popular Unity for the Socialism
- Republican Party of the Social Order
- Socialism and Liberty Party
- Sustainability Network
- Unified Workers' Socialist Party
- Workers' Party
- Brittany Movement and Progress
- Emgann
- Unvaniezh Demokratel Breizh
- Brunei People's Party
- Agrarian Union "Aleksandar Stamboliyski"
- Alternative for Bulgarian Revival
- Alternative Socialist Alliance – Independents
- Bulgarian Communist Party
- Bulgarian Communist Party – Marxists
- Bulgarian Left
- Bulgarian Social Democratic Party
- Bulgarian Socialist Party
- Bulgarian Workers' Party
- Communist Party of Bulgaria
- Green Party of Bulgaria
- Movement for Rights and Freedoms
- Party of Bulgarian Social Democrats
- Political Movement "Social Democrats"
- Union of Communists in Bulgaria
- Burkinabé Party for Refoundation
- Collective of Democratic Mass Organizations and Political Parties
- Congress for Democracy and Progress
- Convergence for Social Democracy
- Convergence of Hope
- Democratic and Popular Rally
- Movement for Tolerance and Progress
- National Patriots' Party
- Party for Democracy and Progress / Socialist Party
- Party for Democracy and Socialism/Metba
- Rally for Democracy and Socialism
- Sankarist Democratic Front
- Sankarist Pan-African Convention
- Social Forces Front
- Union for Rebirth / Sankarist Party
- Unified Socialist Party
- Voltaic Revolutionary Communist Party
- Pan Africanist Socialist Movement – Inkinzo
- Front for Democracy in Burundi
C
- League for Democracy Party
- Beehive Social Democratic Party
- Grassroots Democratic Party
- Khmer National Solidarity Party
- Social Democratic Front
- Union of the Peoples of Cameroon
- Bloc Québécois
- Communist Party of Canada
- Communist Party of Canada
- International Socialists
- New Democratic Party
- Québec solidaire
- Revolutionary Communist Party
- Revolutionary Communist Party of Canada
- Socialist Action
- Socialist Alternative
- Socialist Alternative
- Socialist Party of Ontario
- African Party for the Independence of Cape Verde
- Republican Left of Catalonia,
- Initiative for Catalonia Greens,
- Popular Unity Candidates
- Movement for the Liberation of the Central African People
- Chadian Action for Unity and Socialism
- National Union for Democracy and Renewal
- Maoist Communist Party of China
- Communist Party of China
- Chilean Communist Party
- Christian Democratic Party
- Communist Party of Chile
- Democratic Revolution
- Equality Party
- Green Ecologist Party
- Humanist Party
- Liberal Party of Chile
- Party for Democracy
- Revolutionary Left Movement
- Social Democrat Radical Party
- Socialist Party of Chile
- Wallmapuwen
- Alternative Democratic Pole
- Clandestine Colombian Communist Party
- Colombian Communist Party
- Colombian Communist Party – Maoist
- Colombian Liberal Party
- Colombian Social Democratic Party
- Common Alternative Revolutionary Force
- Communist Party of Colombia
- Democratic Unity Party
- Green Alliance
- Indigenous Social Alliance Movement
- Patriotic Union
- Presentes por el Socialismo
- Revolutionary Communist Group of Colombia
- Revolutionary Independent Labour Movement
- Unionist Movement
- People's Party for Reconstruction and Democracy
- Social Movement for Renewal
- Unified Lumumbist Party
- Union for Democracy and Social Progress
- Union for the Congolese Nation
- Action Movement for Renewal
- Congolese Party of Labour
- Pan-African Union for Social Democracy
- Union for the Republic
- Corsica Libera
- Party of the Corsican Nation
- Broad Front
- Citizens' Action Party
- Costa Rican People's Party
- National Liberation Party
- Patriotic Alliance
- Popular Vanguard Party
- Workers' Party
- Ivorian Workers' Party
- Ivorian Popular Front
- Bosniak Democratic Party of Croatia
- Croatian Labourists
- Croatian People's Party – Liberal Democrats
- Croatian Social Democrats
- Croatian Workers Party
- Independent Democratic Serb Party
- Istrian Democratic Assembly
- Istrian Social Democratic Forum
- Left of Croatia
- Lista za Rijeku - Lista per Fiume
- Red Action
- Social Democratic Action of Croatia
- Social Democratic Party of Croatia
- Socialist Labour Party of Croatia
- Sustainable Development of Croatia
- Workers' Front
- Zagorje Party
- Communist Party of Cuba
- Partido MAN
- Progressive Party of Working People,
- Movement for Social Democracy
- Committee for a Radical Left Rally
- New Internationalist Left
- Movement of Ecologists - Citizens' Cooperation
- Cyprus Social Ecology Movement
- Workers' Democracy
- New Cyprus Party
- United Cyprus Party
- Communist Party of Bohemia and Moravia
- Czech National Socialist Party
- Czech Social Democratic Party
- Green Party
- Liberal-Environmental Party
- National Socialists – Left of the 21st century
- Party of Civic Rights
- Party for Dignified Life
- Party of Democratic Socialism
- Socialist Alternative Future
- Socialist Organisation of Working People
- Socialist Solidarity
D
- The Alternative
- Communist Party
- Communist Party in Denmark
- Communist Party of Denmark
- Danish Social Liberal Party
- Folkeringen
- International Socialists
- Red–Green Alliance
- Social Democrats
- Socialist People's Party
- Socialist Workers Party
- Workers' Communist Party
- People's Rally for Progress
- Front for the Restoration of Unity and Democracy
- Social Democratic People's Party
- Dominica Labour Party
- Broad Front
- Civic Renovation Party
- Communist Party of Labour
- Country Alliance
- Democratic Choice
- Dominican Liberation Party
- Dominican Revolutionary Party
- Green Socialist Party
- International Communist Party
- Modern Revolutionary Party
- Revolutionary Social Democratic Party
- Social Democratic Institutional Bloc
E
- Fretilin
- Socialist Party of Timor
- Communist Party of Ecuador
- Communist Party of Ecuador–Red Sun
- Democratic Left
- Marxist–Leninist Communist Party of Ecuador
- Pachakutik Plurinational Unity Movement – New Country
- PAIS Alliance
- Patriotic Society Party
- Popular Unity
- Socialist Party – Broad Front of Ecuador
- Workers' Party of Ecuador
- Arab Democratic Nasserist Party
- Arab Socialist Ba'ath Party – Egypt Region
- Bread and Freedom Party
- Dignity Party
- Egyptian Communist Party
- Egyptian Popular Current
- National Progressive Unionist Party
- Revolutionary Socialists
- Socialist Party of Egypt
- Socialist Popular Alliance Party
- United Nasserist Party
- Workers and Peasants Party
- Workers Democratic Party
- Farabundo Martí National Liberation Front
- Convergence for Social Democracy
- Social Democratic Party,
- Estonian United Left Party
- Ethiopian People's Revolutionary Democratic Front
F
- Social Democratic Party
- Republic
- Fiji Labour Party
- Social Democratic Party
- Greens
- Left Alliance
- Communist Party of Finland
- Communist Workers' Party - For Peace and Socialism
- Socialist Alternative
- Citizen and Republican Movement
- Citizenship, Action, Participation for the 21st Century
- Ensemble!
- Europe Ecology – The Greens
- Génération.s
- French Communist Party
- Independent Workers' Party
- La France insoumise
- Left Party
- Ligue trotskyste de France
- Lutte Ouvrière
- Marxist–Leninist Communist Organization – Proletarian Way
- Movement of Progressives
- New Anticapitalist Party
- Occitan Party
- Pole of Communist Revival in France
- The Progressives
- Radical Party of the Left
- Revolutionary Left
- Socialist Party
- Workers' Communist Party of France
- Decolonization and Social Emancipation Movement
- Democratic Forces of Guiana
- Guianese Socialist Party
- Walwari
G
- Gabonese Progress Party
- Social Democratic Party
- Gabonese Socialist Party
- African Forum for Reconstruction
- Bloque Nacionalista Galego
- Galician People's Front
- Esquerda Unida
- People's Democratic Organisation for Independence and Socialism
- Communist Party of Georgia
- Free Georgia
- Georgian Dream
- Georgian Labour Party
- Georgian Troupe
- Intellectuals League of Georgia
- New Communist Party of Georgia
- Social Democrats for the Development of Georgia
- Unified Communist Party of Georgia
- Unity
- Alliance '90/The Greens
- Association for Solidarity Perspectives
- Communist Party of Germany
- Communist Party of Germany
- German Communist Party
- International Socialist Left
- The Left
- Marxist–Leninist Party of Germany
- Revolutionary Socialist League
- Social Democratic Party of Germany
- Socialist Equality Party
- Socialist Alternative
- Workers' Power
- Convention People's Party
- National Democratic Congress
- Democratic People's Party
- People's National Convention
- Gibraltar Socialist Labour Party
- Agreement for the New Greece
- Antarsya
- *Alternative Ecologists
- *Left Group
- *New Left Current
- *Organization of Communist Internationalists of Greece–Spartacus
- *Revolutionary Communist Movement of Greece
- *Socialist Workers' Party
- Christian Democracy
- Communist Organization of Greece
- Communist Party of Greece
- Communist Renewal
- Course of Freedom
- Democratic Alignment
- *Democratic Left
- *Panhellenic Socialist Movement
- Democratic Regional Union
- Democratic Social Movement
- Drachmi Greek Democratic Movement Five Stars
- MeRA25
- Fighting Socialist Party of Greece
- Free Citizens
- Greens
- Movement of Democratic Socialists
- Organisation of Internationalist Communists of Greece
- Organization for the Reconstruction of the Communist Party of Greece
- Panhellenic Citizen Chariot
- People's Resistance
- *Communist Party of Greece
- *Marxist–Leninist Communist Party of Greece
- Popular Unions of Bipartisan Social Groups
- Popular Unity
- *Active Citizens
- *Democratic Social Movement
- *I Don't Pay Movement
- *Internationalist Workers' Left
- *Left Anti-capitalist Group
- *Left Recomposition
- *New Fighter
- *Start – Socialist Internationalist Organisation
- Reformers for Democracy and Development
- Social Agreement
- Social League
- Society First
- Syriza
- *Movement for the United in Action Left
- *ROZA
- *Radicals
- *Union of the Democratic Centre
- Workers Revolutionary Party
- Inuit Ataqatigiit
- Inuit Party
- Siumut
- Grenada United Labour Party
- Guadeloupe Communist Party
- Guatemalan National Revolutionary Unity
- National Unity of Hope
- Winaq
- Guinean People's Assembly
- Democratic Party of Guinea – African Democratic Rally
- PAIGC
- People's Progressive Party
- Working People's Alliance
H
- Fanmi Lavalas
- Democratic Unification Party
- Innovation and Unity Party
- Liberty and Refoundation
- Democratic Party
- Civic Party
- Labour Party
- League of Social Democrats
- Neo Democrats
- People Power
- Socialist Action
- Democratic Coalition
- Dialogue for Hungary
- Hungarian Social Green Party
- Hungarian Socialist Party
- Hungarian Socialist Workers' Party
- Hungarian Workers' Party
- Green Left
- Left Party
- Social Democratic Party
- Social Democratic Party of Hungary
- Social Union
- Together
- Workers' Party of Hungary 2006
I
- Humanist Party
- Left-Green Movement
- People's Front of Iceland
- Rainbow
- Social Democratic Alliance
- Socialist Party
- Icelandic Socialist Party
- Pragatisheel Samajwadi Party
- Communist Party of India
- Communist Party of India
- Communist Party of India
- Communist Party of India Liberation
- Dravida Munnetra Kazhagam
- Forward Bloc
- Revolutionary Marxist Party
- Revolutionary Socialist Party
- Samajwadi Party
- Aam Admi Party
- DYFI
- Labor Party
- Indonesian Democratic Party of Struggle
- Indonesian Solidarity Party
- People's Democratic Party
- Communist Party of Iran
- Communist Party of Iran
- Democratic Party of Iranian Kurdistan
- Fedaian Organisation
- Iranian People's Fedai Guerrillas
- Komala Party of Iranian Kurdistan
- Komalah
- Kurdistan Free Life Party
- Labour Party of Iran
- Organization of Iranian People's Fedai Guerrillas
- Organization of Iranian People's Fedai Guerrillas
- Organization of Iranian People's Fedaian
- People's Mujahedin of Iran
- Rahe Kargar
- Tudeh Party of Iran
- Union of People's Fedaian of Iran
- Worker-communism Unity Party of Iran
- Worker-communist Party of Iran
- Worker-communist Party of Iran – Hekmatist
- Workers Left Unity – Iran
- Arab Revolutionary Workers Party
- Iraqi Communist Party
- Left Worker-communist Party of Iraq
- Nasserist Socialist Vanguard Party
- Popular Unity Party
- Worker-communist Party of Iraq
- Assyrian Socialist Party
- Communist Party of Kurdistan – Iraq
- Kurdistan Democratic Solution Party
- Kurdistan Socialist Democratic Party
- Kurdistan Toilers' Party
- Patriotic Union of Kurdistan
- Worker-communist Party of Kurdistan
- 32 County Sovereignty Movement
- Anti-Austerity Alliance–People Before Profit
- *People Before Profit
- *Socialist Party
- *Socialist Workers Party
- *Solidarity
- Communist Party of Ireland
- éirígí
- Irish Republican Socialist Party
- Irish Socialist Network
- Labour Party
- Republican Network for Unity
- Republican Sinn Féin
- Sinn Féin
- Social Democratic and Labour Party
- Socialist Democracy
- Social Democrats
- Workers and Unemployed Action
- Workers' Party of Ireland
- Workers Power
- Manx Labour Party
- Israeli Labor Party
- Gesher
- Democratic Union
- *Green Party
- *Meretz
- *Democratic Party
- Hadash
- *Maki
- Socialist Struggle Movement
- Da'am Workers Party
- Article One
- Anticapitalist Left
- Communist Alternative Party
- Communist Party
- Communist Refoundation Party
- Democratic Party
- Fatherland and Constitution
- Federation of the Greens
- Greens of South Tyrol
- Italian Communist Party
- Italian Left
- Italian Marxist–Leninist Party
- Italian Socialist Party
- Marxist–Leninist Italian Communist Party
- Possible
- Power to the People
- Sicilian Socialist Party
- Venetian Left
- Venetian Left
- Workers' Communist Party
J
- People's National Party
- Japan Revolutionary Communist League
- Japan Revolutionary Communist League
- Japanese Communist Party
- Japanese Communist Party
- Japanese Communist Party
- New Socialist Party of Japan
- Revolutionary Communist League, National Committee
- Social Democratic Party
- Constitutional Democratic Party of Japan
- Greens Japan
- Reiwa Shinsengumi
- Reform Jersey
- Arab Ba'ath Progressive Party
- Jordanian Arab Socialist Ba'ath Party
- Jordanian Communist Party
- Jordanian Democratic People's Party
- Jordanian Democratic Popular Unity Party
K
- Socialist Resistance of Kazakhstan
- Communist Party of Kazakhstan
- Communist People's Party of Kazakhstan
- Nationwide Social Democratic Party
- Madaraka People's Movement
- Orange Democratic Movement
- Safina
- Social Democratic Party of Kenya
- Wiper Democratic Movement – Kenya
- Green Party of Kosovo
- Initiative for Kosovo
- Movement for Unification
- Parliamentary Party of Kosovo
- Partia e Fortë
- The Alternative
- Vetëvendosje
- Ata Meken Socialist Party
- Communist Party of Kyrgyzstan
- Party of Communists of Kyrgyzstan
- Social Democratic Party of Kyrgyzstan
L
- Lao People's Revolutionary Party
- Latvian Russian Union
- Social Democratic Party "Harmony"
- Socialist Party of Latvia
- Al-Mourabitoun
- Arab Democratic Party
- Arab Socialist Ba'ath Party – Lebanon Region
- Armenian Revolutionary Federation in Lebanon
- Communist Action Organization in Lebanon
- Democratic Left Movement
- Democratic Socialist Party
- Lebanese Communist Party
- Nasserist Unionists Movement
- People's Movement
- Popular Nasserist Organization
- Progressive Socialist Party
- Revolutionary Communist Group
- Socialist Arab Lebanon Vanguard Party
- Syrian Social Nationalist Party in Lebanon
- Toilers League
- Union Party
- Lesotho Workers' Party
- Popular Front for Democracy
- Libyan National Movement
- Libyan Popular National Movement
- Democratic Party
- Freie Liste
- Social Democratic Party of Lithuania
- Socialist Party of Lithuania
- Socialist People's Front
- Luxembourg Socialist Workers' Party
- The Greens
- Déi Lénk
- Communist Party of Luxembourg
M
- New Macau Association
- New Hope
- Social Democratic Union of Macedonia,
- Socialist Party of Macedonia
- Congress Party for the Independence of Madagascar
- Democratic Action Party,
- Socialist Party of Malaysia,
- Malaysian People's Party
- Malaysian Workers' Party
- Socialist Alternative
- Gaumee Itthihaad
- Alliance for Democracy in Mali
- Rally for Mali
- African Solidarity for Democracy and Independence
- Democratic Alternative
- Labour Party
- Martinique Communist Party,
- Martinique Independence Movement,
- Martinique Progressive Party
- Socialist Democratic Unionist Party
- Labour Party,
- Lalit
- Mauritian Militant Movement
- Citizens' Movement
- Coalition of Workers, Peasants, and Students of the Isthmus
- Communist Party of Mexico
- Communist Party of Mexico
- Communists' Party
- Labor Party
- Marxist-Leninist Centre in Mexico
- National Regeneration Movement
- Party of the Democratic Revolution
- Popular Socialist Party
- Popular Socialist Party of Mexico
- Socialist Convergence
- Socialist Party of Mexico
- Socialist Unity League
- Socialist Workers Movement
- Workers' Revolutionary Party
- Democratic Party of Moldova
- Party of Communists of the Republic of Moldova
- Party of Socialists of the Republic of Moldova
- Mongolian People's Party
- Mongolian People's Revolutionary Party
- Democratic Party of Socialists of Montenegro
- Liberal Party of Montenegro
- Social Democratic Party of Montenegro
- Social Democrats of Montenegro
- Socialist People's Party of Montenegro
- United Reform Action
- Workers' Party
- Yugoslav Communist Party of Montenegro
- Democratic Way
- Democratic Socialist Party
- Front of Democratic Forces
- Labour Party
- National Ittihadi Congress
- Party of Progress and Socialism
- Socialist Democratic Vanguard Party
- Socialist Party
- Socialist Union of Popular Forces
- Unified Socialist Party
- FRELIMO
- National League for Democracy
- National Unity Party
N
- South West Africa National Union,
- South West Africa People's Organization,
- Workers Revolutionary Party
- Communist Party of Nepal
- Communist Party of Nepal
- Communist Party of Nepal
- Artikel 1
- Denk
- GroenLinks
- Group of Marxist–Leninists/Red Dawn
- International Socialists
- Labour Party
- New Communist Party of the Netherlands
- Party for Human and Spirit
- Party for the Animals
- Socialist Alternative
- Socialist Alternative Politics
- Socialist Party
- United Communist Party
- Kanak Socialist National Liberation Front
- New Zealand Labour Party,
- Alliance,
- Green Party of Aotearoa New Zealand,
- Workers Party of New Zealand
- Sandinista National Liberation Front
- Sandinista Renovation Movement
- Nicaraguan Socialist Party
- Nigerien Party for Democracy and Socialism
- Socialist Party of Nigeria
- *Democratic Socialist Movement
- Labour Party
- Workers' Party of Korea
- Korean Social Democratic Party
- Chondoist Chongu Party
- Communist Party of Norway
- Communist Platform
- Green Party
- International Socialists
- Internationalist League of Norway
- Labour Party
- Radical Socialists
- Red Party
- Socialist Left Party
O
- People's Democratic Front of Oman
P
- Pakistan People's Party
- Pakistan Communist Party
- Muttahida Qaumi Movement
- Labour Party Pakistan
- Awami National Party
- Awami Tahreek
- Awami Workers Party
- Socialist Movement Pakistan
- Palestine Liberation Organization
- *Arab Liberation Front
- *As-Sa'iqa
- *Democratic Front for the Liberation of Palestine
- *Fatah
- *Palestine Liberation Front
- *Palestinian Arab Front
- *Palestinian Democratic Union
- *Palestinian People's Party
- *Palestinian Popular Struggle Front
- *Popular Front for the Liberation of Palestine
- Palestinian National Initiative
- Revolutionary Palestinian Communist Party
- Socialist Struggle Movement
- Democratic Revolutionary Party
- People's Party of Panama
- People's Labour Party
- Social Democratic Party
- Papua New Guinea Greens
- Frente Guasú
- Febrerista Revolutionary Party
- Christian Democratic Party
- Paraguayan Communist Party
- Partido Patria Libre
- Party for a Country of Solidarity
- Tekojoja People's Party
- Broad Front
- *Communist Party of Peru – Red Fatherland
- *Peruvian Communist Party
- *Socialist Party
- Peruvian Nationalist Party
- Revolutionary Socialist Party
- Socialist Workers Party
- Socialist Workers Party
- Communist Party of the Philippines
- Bayan Muna
- Pwersa ng Masang Pilipino
- PDP-Laban
- GABRIELA Women's Party
- Partido Lakas ng Masa
- Democratic Left Alliance
- The Greens
- Labour United
- National Party of Retirees and Pensioners
- Polish Communist Party
- Polish Labour Party
- Polish Socialist Party
- Razem
- Social Democracy of Poland
- Socialist Alternative
- Union of the Left
- Women's Party
- Workers' Democracy
- Your Movement
- Ecologist Party "The Greens"
- Free
- Left Bloc
- Portuguese Communist Party
- Portuguese Labour Party
- Portuguese Workers' Communist Party
- Socialist Alternative Movement
- Socialist Party
- Workers' Party of Socialist Unity
- Movimiento Unión Soberanista
- Popular Democratic Party
- Puerto Rican Communist Party
- Puerto Rican Independence Party
- Puerto Rican Workers' Revolutionary Party
- Puerto Ricans for Puerto Rico Party
- Socialist Front
- Workers' Socialist Movement
- Working People's Party of Puerto Rico
Q
- Parti Québécois
- Québec solidaire
- Option nationale
- Socialist Alternative
R
- Reunionese Communist Party
- Assyrian Democratic Organization
- Democratic Socialist Arab Ba'ath Party
- Honor and Rights Convention
- Kongreya Star
- Democratic Union Party
- Syrian National Democratic Alliance
- Romanian Communist Party
- Romanian Social Party
- Romanian Socialist Party
- Social Democratic Party
- All-Union Communist Party
- All-Union Communist Party of Bolsheviks
- Alliance of the Revolutionary Socialists
- Communist Party of Social Justice
- Communist Party of the Russian Federation
- Communist Party of the Soviet Union
- Communists of Russia
- Labour Russia
- Left Front
- *Russian Communist Workers' Party of the Communist Party of the Soviet Union
- *Vanguard of Red Youth
- Party of Peace and Unity
- Party of Russia's Rebirth
- Party of the Dictatorship of the Proletariat
- Patriots of Russia
- Resistance Movement named after Petr Alexeev
- Revolutionary Workers' Party
- Russian Maoist Party
- Russian Socialist Movement
- Russian United Labour Front
- Socialist Alternative
S
- Saint Kitts and Nevis Labour Party
- Saint Lucia Labour Party
- Unity Labour Party
- Party of Socialists and Democrats
- Active Citizenship
- *United Left
- *Civic 10
- MLSTP/PSD
- Arab Socialist Action Party – Arabian Peninsula
- Scottish National Party
- Scottish Labour Party
- RISE – Scotland's Left Alliance
- *Scottish Socialist Party
- Scottish Green Party
- Solidarity
- Socialist Party Scotland
- Communist Party of Scotland
- Socialist Party of Senegal,
- Party of Independence and Labor
- And-Jëf/African Party for Democracy and Socialism
- Authentic Socialist Party
- African Independence Party – Renewal
- Social Democratic Party/Jant Bi
- Communist Party
- Democratic Party
- Greens of Serbia
- League of Social Democrats of Vojvodina
- Movement of Socialists
- New Communist Party of Yugoslavia
- Party of Labour
- Party of United Pensioners of Serbia
- Reformist Party
- Reformists of Vojvodina
- Rich Serbia
- Social Democracy
- Social Democratic Party
- Social Democratic Party of Serbia
- Social Democratic Union
- Socialist Party of Serbia
- Socialist People's Party
- Together for Serbia
- Union of Socialists of Vojvodina
- People's Party
- Workers' Party of Singapore
- Socialist Front
- Smer-SD
- Communist Party of Slovakia
- 99 Percent - Civic Voice
- Initiative for Democratic Socialism
- Positive Slovenia
- Social Democrats
- Solomon Islands Labour Party
- Peace, Unity, and Development Party
- For Justice and Development
- Wadani
- African National Congress
- African People's Convention
- Azanian People's Organisation
- Black First Land First
- Democratic Left Front
- Democratic Socialist Movement
- Economic Freedom Fighters
- Keep Left
- Pan Africanist Congress of Azania
- Socialist Party of Azania
- South African Communist Party
- Workers and Socialist Party
- Workers International Vanguard League
- Zabalaza Anarchist Communist Front
- Justice Party
- Minjung Party
- Labor Party
- Green Party
- Our Future
- Communist Party of South Ossetia
- Communist Party of South Sudan
- Spanish Socialist Workers' Party
- Unidos Podemos
- *Podemos
- *Equo
- *Building the Left–Socialist Alternative
- *United Left
- **Communist Party of Spain
- **Feminist Party of Spain
- **Izquierda Abierta
- **Republican Left
- **Revolutionary Workers' Party
- Revolutionary Socialism
- Sri Lanka Freedom Party
- United People's Freedom Alliance
- Communist Party of Sri Lanka
- Janatha Vimukthi Peramuna
- Lanka Sama Samaja Party
- United Socialist Party
- Arab Socialist Ba'ath Party – Organization of Sudan
- Arab Socialist Ba'ath Party – Region of Sudan
- Islamic Socialist Party
- Sudanese Ba'ath Party
- Sudanese Communist Party
- Sudanese Socialist Union
- National Democratic Party
- Surinamese Labour Party
- People's United Democratic Movement
- Ngwane National Liberatory Congress
- Swazi Democratic Party
- Swaziland Communist Party
- Feminist Initiative
- Communist League
- Communist Party
- Communist Party Of Sweden
- Green Party
- Left Party
- Socialist Party
- Socialist Justice Party
- Swedish Social Democratic Party
- Örebro Party
- Green Party of Switzerland
- Social Democratic Party of Switzerland
- Swiss Party of Labour
- Alternative Left
- Solidarity
- National Coordination Committee for Democratic Change
- *Democratic Union Party
- *National Democratic Rally
- **Arab Revolutionary Workers Party
- **Arab Socialist Movement
- **Communist Labour Party
- **Democratic Arab Socialist Union
- **Democratic Socialist Arab Ba'ath Party
- National Progressive Front
- *Arab Socialist Ba'ath Party – Syria Region
- *Arab Socialist Movement
- *Arab Socialist Union
- *Arabic Democratic Unionist Party
- *Democratic Socialist Unionist Party
- *National Vow Movement
- *Socialist Unionists
- *Syrian Communist Party
- *Syrian Communist Party
- Popular Front for Change and Liberation
- *People's Will Party
T
- Democratic Progressive Party
- Green Party Taiwan
- Labor Party
- New Power Party
- Taiwan Statebuilding Party
- Social Democratic Party
- Taiwan Communist Party
- Communist Party of Tajikistan
- Chama Cha Mapinduzi
- Tanzania Labour Party
- Move Forward Party
- Workers' Party
- Communist Party of Togo
- Pridnestrovie Communist Party
- Proriv
- People's Empowerment Party
- Congress of the People
- United National Congress
- Progressive Party
- Congress for the Republic
- Democratic Current
- Democratic Forum for Labour and Liberties
- Democratic Patriots' Unified Party
- Green Tunisia Party
- Movement of Socialist Democrats
- Nidaa Tounes
- People's Movement
- Popular Unity Movement
- Social Democratic Path
- Socialist Party
- Tunisian Ba'ath Movement
- Unionist Democratic Union
- Wafa Movement
- Workers' Left League
- Workers' Party
- Bolshevik Party
- Communist Labour Party of Turkey
- Communist Party of Kurdistan
- Communist Party of Turkey
- Communist Party of Turkey
- Communist Party of Turkey/Marxist–Leninist
- Communist Revolution Movement/Leninist
- Communist Workers Party of Turkey
- Democratic Left Party
- Freedom and Socialism Party
- Movement for Change in Turkey
- National Party
- Patriotic Party
- People's Ascent Party
- Peoples' Democratic Congress
- *Democratic Regions Party
- *Green Left Party
- *Labour Party
- *Peoples' Democratic Party
- *Revolutionary Socialist Workers' Party
- *Socialist Democracy Party
- *Socialist Party of the Oppressed
- *Socialist Refoundation Party
- People's Liberation Party
- Peoples' United Revolutionary Movement
- *Communist Labour Party of Turkey/Leninist
- *Communist Party of Turkey/Marxist–Leninist
- *Devrimci Karargâh
- *Kurdistan Workers' Party
- *Maoist Communist Party
- *Marxist–Leninist Armed Propaganda Unit
- *Marxist–Leninist Communist Party
- Republican People's Party
- Revolutionary Communist Party of Turkey
- Revolutionary Party of Kurdistan
- Revolutionary People's Liberation Party/Front
- Revolutionary People's Party
- Revolutionary People's Party
- Revolutionary Workers' Party
- Social Democratic People's Party
- Socialist Alternative
- Socialist Democratic Party
- Socialist Liberation Party
- Socialist Workers' Party of Turkey
- United June Movement
- *Communist Movement of Turkey
- *Communist Party
- *Freedom and Solidarity Party
- **New Way
- *Labourist Movement Party
- *People's Communist Party of Turkey
- Women's Party
- Workers' Fraternity Party
- Workers' Peasants' Party of Turkey
- Communist Party of Turkmenistan
U
- Communist Party of Ukraine
- Justice Party
- Socialist Party of Ukraine
- Borotba
- Communist Party of Britain
- Communist Party of Great Britain
- Communist Party of Great Britain
- Co-operative Party
- Green Party of England and Wales
- International Socialist Network
- Left Unity
- Labour Party
- Mebyon Kernow
- National Health Action Party
- No2EU
- Reality Party
- Respect Party
- Scottish National Party
- Sinn Féin
- Social Democratic and Labour Party
- Socialist Party of Great Britain
- Socialist Party
- Socialist Party
- Socialist Resistance
- Socialist Workers Party
- Socialist Labour Party
- Workers Power
- Workers Party
- Factions of the Democratic Party
- * Blue Collar Caucus
- * Congressional Progressive Caucus
- African People's Socialist Party
- All-African People's Revolutionary Party
- Black Riders Liberation Party
- California National Party
- Committees of Correspondence for Democracy and Socialism
- Communist Party USA
- Communist Party USA
- Democratic Socialists of America
- Ecology Democracy Party
- Freedom Road Socialist Organization
- Freedom Socialist Party
- Green Party of the United States
- Greens/Green Party USA
- Humane Party
- International Socialist Organization
- International Workers Party
- Justice Party
- League for the Revolutionary Party
- Legal Marijuana Now Party
- Liberal Party of New York
- Liberty Union Party
- Natural Law Party
- New Afrikan Black Panther Party
- Oregon Progressive Party
- Party for Socialism and Liberation
- Peace and Freedom Party
- Progressive Labor Party
- Revolutionary Communist Party, USA
- Revolutionary Workers League
- Social Democrats, USA
- Socialist Action
- Socialist Alternative
- Socialist Equality Party
- Socialist Labor Party of America
- Socialist Party USA
- Socialist Workers Organization
- Socialist Workers Party
- Solidarity
- Spark
- Spartacist League
- U.S. Marxist–Leninist Organization
- Vermont Progressive Party
- Women's Equality Party
- Workers Party, USA
- Workers World Party
- Working Families Party
- World Socialist Party of the United States
- Frente Amplio
- *Socialist Party of Uruguay
- *Communist Party of Uruguay
- *Movement of Popular Participation
- *Christian Democratic Party of Uruguay
- *New Space
- *Vertiente Artiguista
- *Party of the Communes
- *Broad Front Confluence
- *Progressive Alliance
- *Partido por la Victoria del Pueblo
- Tupamaro National Liberation Movement
- Popular Assembly
- *March 26 Movement
- People's Democratic Party of Uzbekistan
- Justice Social Democratic Party
- Ecological Movement of Uzbekistan
V
- A New Era
- Alliance for Change
- Communist Party of Venezuela
- Democratic Action
- Democratic Republican Union
- Fatherland for All
- Fearless People's Alliance
- For Social Democracy
- Internationalism
- Justice First
- Marxist–Leninist Communist Party of Venezuela
- Movement for a Responsible, Sustainable and Entrepreneurial Venezuela
- Movement for Socialism
- New Revolutionary Road
- Organized Socialist Party in Venezuela
- People's Electoral Movement
- Popular Will
- Progressive Advance
- Radical Cause
- Red Flag Party
- Revolutionary Middle Class
- Revolutionary Socialism
- Tupamaro
- United Socialist Party of Venezuela
- Venezuelan Popular Unity
- Communist Party of Vietnam
W
- Welsh Labour
- Plaid Cymru
- Llais Gwynedd
- Frente Polisario
Y
- Arab Socialist Ba'ath Party – Yemen Region
- Democratic Nasserist Party
- Nasserist Reform Organisation
- Nasserist Unionist People's Organisation
- National Arab Socialist Ba'ath Party – Yemen Region
- Yemeni Socialist Party
Z
- Movement for Multi-Party Democracy
- Patriotic Front
- Movement for Democratic Change – Ncube
- Movement for Democratic Change – Tsvangirai]
- ZANU–PF
- Zimbabwe African People's Union
- Zimbabwe People's Democratic Party
Former
- Afghanistan – People's Democratic Party of Afghanistan, Settam-e-Melli
- Albania – Albanian Party of Labor
- Algeria – Algerian Communist Party, Socialist Vanguard Party
- Antigua and Barbuda – Antigua Caribbean Liberation Movement
- Argentina – Democratic Socialist Party, Front for a Country in Solidarity, Popular Socialist Party, Workers' Revolutionary Party
- Armenia – Communist Party of Armenia
- Australia – Communist Party of Australia, Democratic Socialist Perspective, Nuclear Disarmament Party, Socialist Democracy
- Austria - Union of Revolutionary Workers of Austria
- Azerbaijan – Muslim Social Democratic Party
- The Bahamas – Vanguard Nationalist and Socialist Party
- Bahrain – Popular Front for the Liberation of Bahrain
- Bangladesh – Bangladesh Krishak Sramik Awami League
- Belarus – Communist Party of Byelorussia
- Belgium – Belgian Socialist Party, Communist Party of Belgium
- Benin – People's Revolutionary Party of Benin
- Bolivia – Party of the Revolutionary Left
- Bosnia and Herzegovina – League of Communists of Bosnia and Herzegovina
- Brazil – Brazilian Labour Party, Free Fatherland Party, Proletarian Liberation Party, Syndicalist Popular Party, Workers' General Party
- Brunei – Brunei People's Party
- Bulgaria – Bulgarian Communist Party, Bulgarian Social Democratic Workers Party
- Burkina Faso – Patriotic League for Development
- Burma – Anti-Fascist People's Freedom League, Burma Socialist Party, Burma Socialist Programme Party, Burma Workers Party, Communist Party of Burma
- Burundi – Burundi Workers' Party
- Cambodia – Kampuchean People's Revolutionary Party, Khmer Rouge
- Cameroon – Union of the Peoples of Cameroon
- Canada – Co-operative Commonwealth Federation, Cape Breton Labour Party, Labor-Progressive Party, League for Socialist Action, Socialist Labour Party, Socialist Party of North America
- Chile – Popular Unitary Action Movement
- Colombia – Patriotic Union
- Democratic Republic of the Congo – Mouvement National Congolais, Parti Solidaire Africain
- Republic of the Congo – National Movement of the Revolution
- Croatia – League of Communists of Croatia
- Cuba – Popular Socialist Party
- Czechoslovakia – Communist Party of Czechoslovakia
- Denmark – Common Course
- Dominican Republic – Dominican Communist Party
- Egypt – Arab Socialist Union, Democratic Movement for National Liberation
- Estonia – Communist Party of Estonia, Estonian Labour Party, Intermovement
- Ethiopia – All-Ethiopia Socialist Movement, Ethiopian People's Revolutionary Party, Marxist–Leninist League of Tigray, Workers' Party of Ethiopia
- Finland – Communist Party of Finland, Democratic Alternative, Finnish People's Democratic League, Social Democratic Union of Workers and Smallholders, Ålandic Left
- France – French Section of the Workers' International, Proletarian Unity Party, Unified Socialist Party, Revolutionary Communist League, Workers' Party
- Georgia – Georgian Communist Party
- Germany – Communist Party of Germany, Independent Social Democratic Party of Germany, Labour and Social Justice – The Electoral Alternative, Party of Democratic Socialism, Socialist Unity Party of Germany, Socialist Unity Party of West Berlin, Socialist Workers' Party of Germany, Spartacus League, Social Democratic Party in the GDR
- Ghana – People's National Party
- Greece – United Democratic Left
- Grenada – New Jewel Movement, Maurice Bishop Patriotic Movement
- Guatemala – Guatemalan Party of Labor, Party of the Guatemalan Revolution, Revolutionary Action Party, Socialist Party
- Guinea – Democratic Party of Guinea, Socialist Democracy of Guinea
- Haiti – Haitian Communist Party, Popular Socialist Party, Unified Party of Haitian Communists
- Honduras – Communist Party of Honduras
- Hungary – Hungarian Communist Party, Hungarian Workers' Party, Hungarian Socialist Workers' Party
- Iceland – Social Democratic Party, People's Alliance, Communist Party of Iceland, National Preservation Party, National Awakening, People's Unity Party – Socialist Party, Union of Liberals and Leftists, Women's List
- India – Congress Socialist Party, Ghadar Party, Praja Socialist Party, Samata Party, Samyukta Socialist Party
- Indonesia – Communist Party of Indonesia, Socialist Party of Indonesia
- Iran – Communist Party of Iran, National Front, Organization of Iranian People's Fedai Guerrillas, Peykar
- Iraq – National Democratic Party
- Ireland – Clann na Poblachta, Democratic Left, Democratic Socialist Party, Independent Socialist Party, Saor Éire, Socialist Labour Party
- Israel – Maki, Mapai, Mapam, Matzpen, Progressive List for Peace
- Italy – Italian Communist Party, Italian Socialist Party, Democrats of the Left, Communist Party of the Free Territory of Trieste, Italian Democratic Socialists, Italian Socialist Party of Proletarian Unity, Democratic Left, Proletarian Democracy, Proletarian Unity Party
- Jamaica – Workers Party of Jamaica
- Japan – Democratic Socialist Party, Farmer-Labour Party, Japan Labour-Farmer Party, Japan Socialist Party, Leftist Socialist Party of Japan, Rightist Socialist Party of Japan
- Jersey – Jersey Communist Party
- Kenya – Kenya People's Union
- Kosovo – League of Communists of Kosovo
- Kyrgyzstan – Communist Party of Kirghizia
- Laos – Pathet Lao
- Latvia – Communist Party of Latvia, General Jewish Labour Bund in Latvia, Latvian Social Democratic Party, Revolutionary Socialist Party of Latvia
- Lebanon – Lebanese National Movement
- Liberia – Progressive Alliance of Liberia
- Lithuania – Communist Party of Lithuania, Democratic Labour Party of Lithuania, Front Party, Socialist Party of Lithuania
- Luxembourg – Social Democratic Party
- Macedonia – League of Communists of Macedonia
- Malaysia – Communist Party of Malaya, Labour Party of Malaya
- Mali – Sudanese Union – African Democratic Rally
- Mexico – Mexican Communist Party, Mexican Liberal Party, Mexican People's Party, Mexican Workers' Party, Party of the Cardenist Front of National Reconstruction, Social Democracy, Social Democratic Party, Socialist Mexican Party, Unified Socialist Party of Mexico, Workers' Revolutionary Party
- Moldova – Communist Party of Moldova
- Montenegro – League of Communists of Montenegro
- Morocco – Ila al-Amam, Moroccan Communist Party, National Union of Popular Forces
- Nepal – Communist Party of Nepal
- Netherlands – Communist Party of the Netherlands, Democratic Socialists '70, Independent Socialist Party, Pacifist Socialist Party, Political Party of Radicals, Revolutionary Socialist Party, Social Democratic League, Social Democratic Workers' Party, Socialist Party
- New Zealand – Communist Party of New Zealand, Democratic Labour Party, Independent Political Labour League, Jim Anderton's Progressive Party, NewLabour Party, New Zealand Socialist Party, Residents Action Movement, United Labour Party
- Niger – Sawaba
- Nigeria – Socialist Workers and Farmers Party of Nigeria
- North Korea – Workers' Party of North Korea
- Norway – Red Electoral Alliance, Social Democratic Labour Party of Norway, Workers' Communist Party
- Oman – Dhofar Liberation Front, Popular Front for the Liberation of Oman, Popular Front for the Liberation of the Occupied Arabian Gulf
- Pakistan – Azad Pakistan Party, Communist Party of Pakistan, National Awami Party, Pakistan Socialist Party
- Palestinian territories – National Liberation League in Palestine, Palestine Communist Party
- Poland – Social Democracy of the Kingdom of Poland and Lithuania, Communist Party of Poland, Polish Workers' Party, Polish United Workers' Party, Communist Party of the Free City of Danzig, Social Democratic Party of the Free City of Danzig, Union of Polish Patriots
- Portugal – Leftwing Union for the Socialist Democracy, Portuguese Socialist Party
- Puerto Rico – Puerto Rican Socialist Party, Puerto Rican Communist Party
- Romania – General Jewish Labour Bund in Romania, Ploughmen's Front, Romanian Communist Party, Romanian Social Democratic Party, Social Democratic Party of Romania, Socialist Party of Romania
- Russia – Russian Social Democratic Labor Party, Socialist-Revolutionary Party, Mensheviks, Tuvan People's Revolutionary Party
- Saint Lucia – National Alliance
- Saint Vincent and the Grenadines – Saint Vincent Labour Party
- San Marino – Sammarinese Communist Party, Sammarinese Socialist Party, Sammarinese Communist Refoundation
- Saudi Arabia – Arab Socialist Action Party – Arabian Peninsula, Communist Party in Saudi Arabia
- Serbia – League of Communists of Serbia, League of Communists of Vojvodina
- Singapore – Barisan Sosialis, Labour Front
- Slovakia – Communist Party of Slovakia
- Slovenia – League of Communists of Slovenia
- Solomon Islands – Solomon Islands Labour Party
- Somalia – Somali Revolutionary Socialist Party
- South Africa – Labour Party
- South Korea – Communist Party of Korea, Workers Party of South Korea, Laboring People's Party, Progressive Party, United Socialist Party of Korea, Democratic Labor Party, Unified Progressive Party, Socialist Party, New Progressive Party, People's United Party
- Soviet Union – Communist Party of the Soviet Union
- Spain – Batasuna, Communist Party of the Basque Homelands, Workers' Party of Marxist Unification
- Sudan – Sudanese Socialist Union
- Suriname – Communist Party of Suriname
- Switzerland – Communist Party of Switzerland, Progressive Organizations of Switzerland
- Taiwan – China Democratic Socialist Party, Taiwanese Communist Party
- Tanzania – Afro-Shirazi Party, Tanganyika African National Union, Umma Party
- Thailand – Communist Party of Thailand, Socialist Party of Thailand
- Togo – Juvento, Pan-African Socialist Party
- Trinidad and Tobago – Butler Party, Democratic Labour Party, United Labour Front, Workers and Farmers Party, Trinidad Labour Party, Communist Party of Trinidad and Tobago, Caribbean Socialist Party, Caribbean National Labour Party, Tobago Organization of the People
- Tunisia – Tunisian Communist Party
- Turkey – Communist Party of Turkey, Democratic People's Party, Democratic Society Party, Equality and Democracy Party, Social Democracy Party, Social Democratic Populist Party, Workers Party of Turkey
- Turkmenistan – Communist Party of Turkmenistan
- Ukraine – Borotbisty, Communist Party of Ukraine
- United Kingdom – Chartist Party, Common Wealth Party, Communist Party of Great Britain, Independent Labour Party, National Labour Organisation, Republican Labour Party, Social Democratic Federation
- United States – American Labor Party, Farmer-Labor Party, New Alliance Party, Nonpartisan League, Proletarian Party of America, Social Democratic Party, Socialist Party of America, Workers Party, Workingmen's Party of the United States
- Uzbekistan – Communist Party of Uzbekistan
- Venezuela – Fifth Republic Movement, People's Electoral Movement, Revolutionary Left Movement
- Vietnam – Indochinese Communist Party, National Liberation Front
- Yemen – National Liberation Front
- Yugoslavia – League of Communists of Yugoslavia
- Zimbabwe – United Progressive Party
Politics
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Parties
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