| Country | Party | Symbol | Year(s) | Leader | % Correct |
|---|---|---|---|---|---|
| Democratic Republic of Vietnam | Communist Party of Vietnam | 1945-1969 | Hồ Chí Minh | 100%
| |
| Soviet Union | Communist Party of the Soviet Union | 1924-1953 | Joseph Stalin | 92%
| |
| Democratic Republic of Vietnam | Communist Party of Vietnam | 1969-1976 | Lê Duẩn | 92%
| |
| Vietnam | Communist Party of Vietnam | 1976-1986 | Lê Duẩn | 92%
| |
| Vietnam | Communist Party of Vietnam | 1997-2001 | Lê Khả Phiêu | 92%
| |
| Russian Soviet Federative Socialist Republic | Russian Communist Party (Bolsheviks) | ![]() | 1917-1922 | Vladimir Lenin | 92%
|
| Soviet Union | Communist Party of the Soviet Union | 1922-1924 | Vladimir Lenin | 92%
| |
| People's Socialist Republic of Albania | Party of Labour of Albania | 1944-1985 | Enver Hoxha | 83%
| |
| Cuba | Communist Party of Cuba | 1959-2008 | Fidel Castro | 83%
| |
| Soviet Zone Revolutionary Base Areas | Communist Party of China | 1927-1931 | Mao Zedong | 83%
| |
| Chinese Soviet Republic | Communist Party of China | 1931-1937 | Mao Zedong | 83%
| |
| China | Communist Party of China | 1949-1976 | Mao Zedong | 83%
| |
| Soviet Union | Communist Party of the Soviet Union | 1985-1991 | Mikhail Gorbachev | 83%
| |
| Democratic Kampuchea | Communist Party of Kampuchea | 1975-1979 | Pol Pot | 83%
| |
| China | Communist Party of China | 2012-Now | Xi Jinping | 83%
| |
| Syrian Arab Republic | Syrian Arab Socialist Ba'ath Party | 2000-2024 | Bashar al-Assad | 75%
| |
| China | Communist Party of China | 1978-1989 | Deng Xiaoping | 75%
| |
| Syrian Arab Republic | Syrian Arab Socialist Ba'ath Party | 1970-2000 | Hafez al-Assad | 75%
| |
| Venezuela | Fifth Republic Movement | ![]() | 1999-2007 | Hugo Chávez | 75%
|
| Venezuela | United Socialist Party of Venezuela | 2007-2013 | Hugo Chávez | 75%
| |
| North Korea | Workers' Party of Korea | 1949-1994 | Kim Il-sung | 75%
| |
| Provisional People's Committee of North Korea | Communist Party of Korea | 1946 | Kim Il-sung | 75%
| |
| (Provisional) (People's Committee of) North Korea | Workers' Party of North Korea | ![]() | 1946-1949 | Kim Il-sung | 75%
|
| North Korea | Workers' Party of Korea | 1994-2011 | Kim Jong-il | 75%
| |
| North Korea | Workers' Party of Korea | 2011-Now | Kim Jong-un | 75%
| |
| Cuba | Communist Party of Cuba | 2008-2021 | Raúl Castro | 75%
| |
| Burkina Faso | Revolutionary Military Organization / Popular Revolutionary Tribunal / Revolutionary Defence Committee | 1983-1987 | Thomas Sankara | 75%
| |
| Democratic Federal Yugoslavia | Communist Party of Yugoslavia | 1943-1945 | Josip Broz Tito | 67%
| |
| Yugoslavia | League of Communists of Yugoslavia | 1945-1980 | Josip Broz Tito | 67%
| |
| Venezuela | United Socialist Party of Venezuela | 2013-2026 | Nicolás Maduro | 67%
| |
| Soviet Union | Communist Party of the Soviet Union | 1953-1964 | Nikita Khrushchev | 67%
| |
| Honduras | Libertad y Refundación | 2022-2026 | Xiomara Castro | 67%
| |
| China | Communist Party of China | 2002-2012 | Hu Jintao | 58%
| |
| Soviet Union | Communist Party of the Soviet Union | 1964-1982 | Leonid Brezhnev | 58%
| |
| Libyan Arab Republic | Free Officers Movement | 1969-1971 | Mu'ammar Qaḏḏāfī | 58%
| |
| Libyan Arab Republic | Libyan Arab Socialist Union | 1971-1977 | Mu'ammar Qaḏḏāfī | 58%
| |
| Great Socialist People's Libyan Arab Jamahiriya | Third International Theory / Jamahiriya | 1977-2011 | Mu'ammar Qaḏḏāfī | 58%
| |
| Chile | Socialist Party of Chile | 1970-1973 | Salvador Allende | 58%
| |
| China | Communist Party of China | 1976-1978 | Hua Guofeng | 50%
| |
| Palestine | Fatah | ![]() | 1989-2004 | Yasser Arafat | 50%
|
| Soviet Union | Communist Party of the Soviet Union | 1982-1984 | Yuri Andropov | 50%
| |
| Democratic Republic of Afghanistan | People's Democratic Party of Afghanistan | 1979-1986 | Babrak Karmal | 42%
| |
| Equatorial Guinea | Popular Idea of Equatorial Guinea | 1968-1970 | Francisco Macías Nguema (Masie Nguema Biyogo Ñegue) | 42%
| |
| German Democratic Republic | Socialist Unity Party of Germany | 1971-1989 | Erich Honecker | 42%
| |
| Equatorial Guinea | United National Workers' Party | ![]() | 1970-1979 | Francisco Macías Nguema (Masie Nguema Biyogo Ñegue) | 42%
|
| Burkina Faso | Patriotic Movement for Safeguard and Restoration | 2022-Now | Ibrahim Traoré | 42%
| |
| Cuba | Communist Party of Cuba | 2021-Now | Miguel Díaz-Canel | 42%
| |
| Socialist Republic of Romania | Romanian Communist Party | 1965-1989 | Nicolae Ceaușescu | 42%
| |
| Republic of Mahabad | Democratic Party of Iranian Kurdistan | 1946 | Qazî Mihemed | 42%
| |
| People's Democratic Republic of Yemen | National Liberation Front | 1978 | Ali Nasir Muhammad | 33%
| |
| People's Democratic Republic of Yemen | Yemeni Socialist Party | 1978 | Ali Nasir Muhammad | 33%
| |
| People's Democratic Republic of Yemen | Yemeni Socialist Party | 1980-1986 | Ali Nasir Muhammad | 33%
| |
| Venezuela | United Socialist Party of Venezuela | 2026-Now | Delcy Rodríguez | 33%
| |
| Vietnam | Communist Party of Vietnam | 1991-1997 | Đỗ Mười | 33%
| |
| Soviet Union | Communist Party of the Soviet Union | 1953 | Georgy Malenkov | 33%
| |
| Laos | Lao People's Revolutionary Party | 1975-1992 | Kaysone Phomvihane | 33%
| |
| Somali Democratic Republic | Supreme Revolutionary Council | 1969-1976 | Maxamed Siyaad Barre | 33%
| |
| Somali Democratic Republic | Somali Revolutionary Socialist Party | 1976-1991 | Maxamed Siyaad Barre | 33%
| |
| Iranian Soviet Socialist Republic | Jangal Movement of Gilan | 1920 1921 | Mirza Kuchik Khan | 33%
| |
| Makhnovshchina | Makhnovtsi | 1918-1921 | Nestor Makhno | 33%
| |
| Zimbabwe | Zimbabwe African National Union | 1980-1987 | Robert Mugabe | 33%
| |
| Zimbabwe | Zimbabwe African National Union – Patriotic Front | 1987-2017 | Robert Mugabe | 33%
| |
| People's Democratic Republic of Yemen | National Liberation Front | 1969-1978 | Salim Rubaya Ali | 33%
| |
| Vietnam | Communist Party of Vietnam | 2024-Now | Tô Lâm | 33%
| |
| Czechoslovakia | Communist Party of Czechoslovakia | 1968-1969 | Alexander Dubček | 25%
| |
| Czechoslovakia | Communist Party of Czechoslovakia | 1953-1968 | Antonín Novotný | 25%
| |
| Nicaragua | Sandinista National Liberation Front | ![]() | 1979-1990 2007-Now | Daniel Ortega | 25%
|
| Democratic Autonomous Administration of North and East Syria | Democratic Union Party | 2016-Now | Îlham Ehmed & Mansur Selum | 25%
| |
| Bolivia | Movement for Socialism | ![]() | 2006-2019 | Evo Morales | 25%
|
| Algeria | National Liberation Front | 1958-1961 1962-1963 | Ferhat Abbas | 25%
| |
| Seychelles | Seychelles People's Progressive Front | 1977-1991 | France-Albert René | 25%
| |
| United Arab Republic | National Union | 1957-1962 | Gamal Abdel Nasser | 25%
| |
| United Arab Republic | Arab Socialist Union | 1962-1970 | Gamal Abdel Nasser | 25%
| |
| Czechoslovakia | Communist Party of Czechoslovakia | 1969-1987 | Gustáv Husák | 25%
| |
| Colombia | Colombia Humana | 2022-Now | Gustavo Petro | 25%
| |
| State of Cambodia | Kampuchean People's Revolutionary Party | 1989-1991 | Hun Sen | 25%
| |
| People's Republic of Kampuchea | Kampuchean People's Revolutionary Party | 1984-1989 | Hun Sen | 25%
| |
| China | Communist Party of China | 1989-2002 | Jiang Zemin | 25%
| |
| Czechoslovakia | Communist Party of Czechoslovakia | 1946-1953 | Klement Gottwald | 25%
| |
| Soviet Union | Communist Party of the Soviet Union | 1984-1985 | Konstantin Chernenko | 25%
| |
| Hungarian Soviet Republic | Party of Communists in Hungary | 1919 | Kun Béla | 25%
| |
| Shaan–Gan–Ning Border Region | Communist Party of China | 1937-1949 | Lín Bóqú | 25%
| |
| Provisional Revolutionary Government of the Republic of South Vietnam | National Liberation Front of South Vietnam | 1969-1976 | Nguyễn Hữu Thọ | 25%
| |
| Vietnam | Communist Party of Vietnam | 2011-2024 | Nguyễn Phú Trọng | 25%
| |
| Vietnam | Communist Party of Vietnam | 1986-1991 | Nguyễn Văn Linh | 25%
| |
| Peru | Perú Libre | 2021-2022 | Pedro Castillo | 25%
| |
| Democratic Republic of Afghanistan | People's Democratic Party of Afghanistan | 1979 | Hafizullah Amin | 17%
| |
| Eritrea | Eritrean People's Liberation Front | 1991-1993 | Isaias Afwerki | 17%
| |
| Democratic People's Republic of Angola | UNITA | 1979-1992 | Jonas Savimbi | 17%
| |
| Portugal | Democratic Leftwing Republican Party | 1924-1925 | José Domingues dos Santos | 17%
| |
| People's Republic of Angola | People's Movement for the Liberation of Angola | 1979-1990 | José Eduardo dos Santos | 17%
| |
| Tanganyika / Tanzania | Tanganyika African National Union | 1962-1977 | Julius Nyerere | 17%
| |
| Tanzania | Chama Cha Mapinduzi | 1977-1985 | Julius Nyerere | 17%
| |
| Ghana | Convention People's Party | ![]() | 1960-1966 | Kwame Nkrumah | 17%
|
| Ecuador | PAIS Alliance | 2017-2018 | Lenín Moreno | 17%
| |
| Guinea-Bissau | African Party for the Independence of Guinea and Cape Verde | ![]() | 1973-1980 1984-1991 | Luís Cabral | 17%
|
| Derg | Provisional Military Administrative Council / Workers' Party of Ethiopia | ![]() | 1974 1977-1987 | Mengistu Haile Mariam | 17%
|
| People's Democratic Republic of Ethiopia | Workers' Party of Ethiopia | ![]() | 1987-1991 | Mengistu Haile Mariam | 17%
|
| Czechoslovakia | Communist Party of Czechoslovakia | 1987-1989 | Miloš Jakeš | 17%
| |
| Republic of Afghanistan | People's Democratic Party of Afghanistan | 1986-1992 | Mohammad Najibullah Ahmadzai | 17%
| |
| Socialist Republic of the Union of Burma | Burma Socialist Programme Party | ![]() | 1962-1988 | Ne Win | 17%
|
| Ecuador | PAIS Alliance | 2007-2017 | Rafael Correa | 17%
| |
| Hungarian People's Republic | Hungarian Working People's Party | 1948-1956 | Rákosi Mátyás | 17%
| |
| Hungarian Republic | Hungarian Communist Party | 1946 1947-1948 | Rákosi Mátyás | 17%
| |
| People's Republic of Mozambique | FRELIMO | 1975-1986 | Samora Machel | 17%
| |
| Indonesia | Independent (Nasakom) / Indonesian National Party | 1945-1967 | Sukarno | 17%
| |
| People's Republic of Bulgaria | Bulgarian Communist Party | 1954-1989 | Todor Zhivkov | 17%
| |
| German Democratic Republic | Socialist Unity Party of Germany | 1950-1971 | Walter Ulbricht | 17%
| |
| Pakistan | Pakistan People's Party | ![]() | 1971-1977 | Zulfikar Ali Bhutto | 17%
|
| Iraq | Iraqi Communist Party | 1958-1963 | Abdul-Karim Qasim | 8%
| |
| Iraq | Iraqi Arab Socialist Union | 1966 | Abdul-Rahman al-Bazzaz | 8%
| |
| Iraq | Iraqi Arab Socialist Union | 1963-1966 1966-1968 | Abdul Salam Arif | 8%
| |
| People's Republic of Angola | People's Movement for the Liberation of Angola | 1975-1979 | Agostinho Neto | 8%
| |
| Algeria | National Liberation Front | 1963-1965 | Ahmed Ben Bella | 8%
| |
| Iraq | Arab Socialist Ba'ath Party | 1963 | Ahmed Hassan al-Bakr | 8%
| |
| Guinea | Democratic Party of Guinea – African Democratic Rally | ![]() | 1958-1984 | Ahmed Sékou Touré | 8%
|
| Far Eastern Republic | Communist Party of the Soviet Union | 1920-1921 | Alexander Krasnoshchyokov | 8%
| |
| Political Committee of National Liberation | Socialist Party of Greece | ![]() | 1944 | Alexandros Svolos | 8%
|
| State of the Comoros | Democratic Rally of the Comorian People | 1975-1976 | Ali Soilih | 8%
| |
| Derg | Provisional Military Administrative Council | 1974 | Aman Andom | 8%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | 1928-1930 1936-1939 | Anandyn Amar | 8%
| |
| Cabo Verde | African Party for the Independence of Guinea and Cabo Verde | ![]() | 1975-1981 | Aristides Pereira | 8%
|
| Cabo Verde | African Party for the Independence of Cabo Verde | 1981-1990 | Aristides Pereira | 8%
| |
| Nepal | Unified Communist Party of Nepal (Maoist) | ![]() | 2011-2013 | Baburam Bhattarai | 8%
|
| People's Revolutionary Government of Grenada | New JEWEL Movement | 1983 | Bernard Coard | 8%
| |
| Provisional Government of the Republic of Poland / Government of National Unity / Polish People's Republic | Polish Workers' Party | 1944-1947 1947-1948 | Bolesław Bierut | 8%
| |
| Polish People's Republic | Polish United Workers' Party | 1948-1952 | Bolesław Bierut | 8%
| |
| Laos | Lao People's Revolutionary Party | 2016-2021 | Bounnhang Vorachit | 8%
| |
| Socialist Republic of Chile | Socialist Party of Chile | 1932 | Carlos Dávila | 8%
| |
| Guinea-Bissau | African Party for the Independence of Guinea and Cape Verde | 1984 | Carmen Pereira | 8%
| |
| India | Samajwadi Janata Party (Rashtriya) | ![]() | 1990-1991 | Chandra Shekhar | 8%
|
| People's Republic of Kampuchea | Kampuchean People's Revolutionary Party | 1981-1984 | Chan Sy | 8%
| |
| Guyana | People's Progressive Party/Civic | ![]() | 1992-1997 | Cheddi Jagan | 8%
|
| Laos | Lao People's Revolutionary Party | 2006-2016 | Choummaly Sayasone | 8%
| |
| Bolivia | Military (Socialist) | 1936-1937 | David Toro | 8%
| |
| Cyprus | Progressive Party of Working People | 2008-2013 | Demetris Christofias | 8%
| |
| People's Republic of the Congo | Congolese Party of Labour | 1979-1991 | Denis Sassou Nguesso | 8%
| |
| Guyana | People's National Congress | 1985-1987 | Desmond Hoyte | 8%
| |
| Provisional Democratic Government | Communist Party of Greece | 1949-1950 | Dimitrios Partsalidis | 8%
| |
| Chita Republic | Russian Social Democratic Labour Party | ![]() | 1905-1906 | Anton Kostiushko-Voliuzhanich & Ivan Babushkin & Viktor Kurnatovsky | 8%
|
| Crimean Socialist Soviet Republic | Communist Party of the Soviet Union | 1919 | Dmitry Ilyich Ulyanov | 8%
| |
| Polish People's Republic | Polish United Workers' Party | 1970-1980 | Edward Gierek | 8%
| |
| German Democratic Republic | Socialist Unity Party of Germany | 1989 | Egon Krenz | 8%
| |
| Political Committee of National Liberation | Communist Party of Greece | 1944 | Evripidis Bakirtzis | 8%
| |
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1921 | Feliks Kon | 8%
| |
| France | French Section of the Workers' International | 1946 | Félix Gouin | 8%
| |
| Guyana | People's National Congress | 1969-1985 | Forbes Burnham | 8%
| |
| Donetsk–Krivoy Rog Soviet Republic | Russian Social Democratic Labour Party (Bolsheviks) | ![]() | 1918 | Fyodor Sergeyev | 8%
|
| People's Republic of Bulgaria | Bulgarian Communist Party | 1948-1949 | Georgi Dimitrov | 8%
| |
| Bolivia | Military (Socialist) | 1937-1939 | Germán Busch | 8%
| |
| Hungarian People's Republic | Hungarian Socialist Workers' Party | 1956 | Gerő Ernő | 8%
| |
| Hungarian People's Republic | Hungarian Socialist Workers' Party | 1988-1989 | Grósz Károly | 8%
| |
| Namibia | SWAPO | ![]() | 2017-2024 | Hage Geingob | 8%
|
| Djibouti | People's Rally for Progress | ![]() | 1981-1992 | Hassan Gouled Aptidon | 8%
|
| Ghana | People's National Party | 1979-1981 | Hilla Limann | 8%
| |
| Revolutionary Military Council of Grenada | New JEWEL Movement | 1983 | Hudson Austin | 8%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | 1984-1990 | Jambyn Batmönkh | 8%
| |
| Guyana | People's Progressive Party/Civic | 1997-1999 | Janet Jagan | 8%
| |
| Nepal | Communist Party of Nepal (Unified Marxist–Leninist) | 2011 | Jhala Nath Khanal | 8%
| |
| Guinea-Bissau | African Party for the Independence of Guinea and Cape Verde | 1980-1984 | João Bernardo Vieira | 8%
| |
| People's Republic of Mozambique | FRELIMO | 1986-1989 | Joaquim Chissano | 8%
| |
| Hungarian People's Republic | Hungarian Socialist Workers' Party | 1956-1988 | Kádár János | 8%
| |
| Czechoslovakia | Communist Party of Czechoslovakia | 1989 | Karel Urbánek | 8%
| |
| Zambia | United National Independence Party | ![]() | 1964-1991 | Kenneth Kaunda | 8%
|
| Laos | Lao People's Revolutionary Party | 1992-2006 | Khamtai Siphandone | 8%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | 1939-1952 | Khorloogiin Choibalsan | 8%
| |
| Nepal | Communist Party of Nepal (Unified Marxist–Leninist) | ![]() | 2015-2016 2018-2021 2024-2025 | KP Sharma Oli | 8%
|
| Gambia | Gambia Socialist Revolutionary Party | 1981 | Kukoi Sanyang | 8%
| |
| Maquis of Fizi | Party of the People's Revolution | 1967-1986 | Laurent-Désiré Kabila | 8%
| |
| France | French Section of the Workers' International | 1946-1947 | Léon Blum | 8%
| |
| Guinea | Democratic Party of Guinea – African Democratic Rally | 1984 | Louis Lansana Beavogui | 8%
| |
| Nepal | Communist Party of Nepal (Unified Marxist–Leninist) | ![]() | 2009-2011 | Madhav Kumar Nepal | 8%
|
| Provisional Democratic Government | Communist Party of Greece | 1947-1949 | Markos Vafeiadis | 8%
| |
| People's Republic of Benin | People's Revolutionary Party of Benin | 1974-1989 | Mathieu Kérékou | 8%
| |
| Socialist Republic of the Union of Burma | Burma Socialist Programme Party | 1988 | Maung Maung | 8%
| |
| People's Revolutionary Government of Grenada | New JEWEL Movement | ![]() | 1979-1983 | Maurice Bishop | 8%
|
| Namibia | SWAPO | 2024-2025 | Nangolo Mbumba | 8%
| |
| Namibia | SWAPO | 2025-Now | Netumbo Nandi-Ndaitwah | 8%
| |
| Far Eastern Republic | Communist Party of the Soviet Union | 1921-1922 | Nikolay Matveyev | 8%
| |
| Democratic Republic of Georgia | Georgian Menshevik Party | 1918 | Noe Ramishvili | 8%
| |
| Democratic Republic of Afghanistan | People's Democratic Party of Afghanistan | 1978-1979 | Nur Muhammad Taraki | 8%
| |
| Hungarian People's Republic | Hungarian Socialist Workers' Party | 1989 | Nyers Rezső | 8%
| |
| Peru | Peruvian Nationalist Party | 2011-2013 | Ollanta Humala | 8%
| |
| German Democratic Republic | Socialist Unity Party of Germany | 1949-1950 | Otto Grotewohl | 8%
| |
| People's Republic of Kampuchea | Kampuchean People's Revolutionary Party | 1979-1981 | Pen Sovan | 8%
| |
| People's Republic of Bulgaria | Bulgarian Communist Party | 1989-1990 | Petr Mladenov | 8%
| |
| Nepal | Unified Communist Party of Nepal (Maoist) | ![]() | 2008-2009 2016-2017 2022-2024 | Pushpa Kamal Dahal | 8%
|
| People's Socialist Republic of Albania | Party of Labour of Albania | 1985-1992 | Ramiz Alia | 8%
| |
| Nicaragua | Sandinista National Liberation Front | 2025-Now | Rosario Murillo | 8%
| |
| Guyana | People's Progressive Party/Civic | 1997 | Sam Hinds | 8%
| |
| Socialist Republic of the Union of Burma | Burma Socialist Programme Party | 1988 | Sein Lwin | 8%
| |
| Bangladesh | Bangladesh Krishak Sramik Awami League | 1975 | Sheikh Mujibur Rahman | 8%
| |
| Rebel Zapatista Autonomous Municipalities | Zapatista Army of National Liberation | 1993-2014 | Subcomandante Marcos | 8%
| |
| Derg | Provisional Military Administrative Council | 1974-1977 | Tafari Benti | 8%
| |
| Laos | Lao People's Revolutionary Party | 2021-Now | Thongloun Sisoulith | 8%
| |
| People's Republic of Bulgaria | Bulgarian Communist Party | 1949-1954 | Valko Chervenkov | 8%
| |
| France | French Section of the Workers' International | 1946 1947-1954 | Vincent Auriol | 8%
| |
| Galician Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | ![]() | 1920 | Volodymyr Zatonsky | 8%
|
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1920-1921 | Vyacheslav Molotov | 8%
| |
| Polish People's Republic | Polish United Workers' Party | 1956-1970 | Władysław Gomułka | 8%
| |
| Polish People's Republic | Polish Workers' Party | 1947 | Władysław Kowalski | 8%
| |
| Polish People's Republic | Polish United Workers' Party | 1981-1989 | Wojciech Jaruzelski | 8%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | 1952-1984 | Yumjaagiin Tsedenbal | 8%
| |
| Algeria | National Liberation Front | 1962-1962 | Abderrahmane Farès | 0%
| |
| People's Democratic Republic of Yemen | Yemeni Socialist Party | 1978-1980 | Abdul Fattah Ismail | 0%
| |
| Syrian Arab Republic | Syrian Arab Socialist Ba'ath Party | 2000 | Abdul Halim Khaddam | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1922 1923 | Abdulla Khodzhayev "Khadzhi Baba" | 0%
| |
| Bukharan People's Soviet Republic | Communist Party of Bukhara | 1923-1924 | Abdulqodir Muxitdinov | 0%
| |
| People's Republic of Zanzibar | Afro-Shirazi Party | 1964 | Abeid Karume | 0%
| |
| Yemen Arab Republic | Military Command Council | 1977-1978 | Ahmad al-Ghashmi | 0%
| |
| Transcaucasian Democratic Federative Republic | Georgian Menshevik Party | 1918 | Akaki Chkhenkeli | 0%
| |
| Tajikistan | Communist Party of Tajikistan | 1991 1992 | Akbarsho Iskandarov | 0%
| |
| Armenia | Armenian Revolutionary Federation | 1919-1920 | Alexander Khatisian | 0%
| |
| Belarusian People's Republic | Communist Party of Byelorussia | 1919 | Alexander Miasnikian | 0%
| |
| Republic of the Congo | National Movement of the Revolution | 1968-1969 | Alfred Raoul | 0%
| |
| Democratic Republic of Yemen | Yemeni Socialist Party | 1994 | Ali Salim al-Beidh | 0%
| |
| Yugoslavia | League of Communists of Kosovo | 1984-1985 | Ali Šukrija | 0%
| |
| Republic of the Congo | National Movement of the Revolution | 1963-1968 | Alphonse Massamba-Débat | 0%
| |
| Syrian Arab Republic | Syrian Arab Socialist Ba'ath Party | 1963-1966 | Amin al-Hafiz | 0%
| |
| Yugoslavia | League of Communists of Yugoslavia | 1990-1991 | Ante Marković | 0%
| |
| Slovak Soviet Republic | Party of Communists in Hungary | 1919 | Antonín Janoušek | 0%
| |
| Sri Lanka | Janatha Vimukthi Peramuna | 2024-Now | Anura Kumara Dissanayake | 0%
| |
| Socialist Soviet Republic of Armenia | Communist Party of the Soviet Union | 1921-1922 | Askanaz Mravian | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1922-1923 | Atadzhan Safayev | 0%
| |
| Latvia | Communist Party of Latvia | 1940 | Augusts Kirhenšteins | 0%
| |
| Azerbaijan Soviet Socialist Republic | Azerbaijan Communist Party | 1990-1991 | Ayaz Mütəllibov | 0%
| |
| Provisional People's Government of Mongolia | Mongolian People's Party | 1923-1924 | Balingiin Tserendorj | 0%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | ![]() | 1924-1928 | Balingiin Tserendorj | 0%
|
| Senegal | PASTEF | ![]() | 2024-Now | Bassirou Diomaye Faye | 0%
|
| Inner Mongolian People's Republic | Mongolian Youth Revolutionary Party | 1945 | Bayan Dalai | 0%
| |
| Sovereign Council of Asturias and León | Spanish Socialist Workers' Party | 1936-1937 | Belarmino Tomás | 0%
| |
| Gurian Republic | Georgian Menshevik Party | 1902-1906 | Beniamin Chkhikvishvili | 0%
| |
| Algeria | National Liberation Front | 1961-1962 | Benyoucef Benkhedda | 0%
| |
| Vanuatu | Vanua'aku Pati | 2020-2022 | Bob Loughman | 0%
| |
| Ukrainian People's Republic | Ukrainian Social Democratic Labour Party | 1919 | Borys Martos | 0%
| |
| Yugoslavia | League of Communists of Vojvodina | 1987-1988 | Boško Krunić | 0%
| |
| Sahrawi Arab Democratic Republic | Polisario | 2016-Now | Brahim Ghali | 0%
| |
| Algeria | National Liberation Front | 1979-1988 | Chadli Bendjedid | 0%
| |
| Provisional People's Government of Mongolia | Mongolian People's Party | 1921 | Dambyn Chagdarjav | 0%
| |
| Suriname | National Military Council | 1980-1983 | Dési Bouterse | 0%
| |
| Democratic Republic of Madagascar | Vanguard of the Malagasy Revolution | ![]() | 1975-1992 | Didier Ratsiraka | 0%
|
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1921-1922 | Dmitry Manuilsky | 0%
| |
| Provisional People's Government of Mongolia | Mongolian People's Party | 1921-1922 | Dogsomiin Bodoo | 0%
| |
| Vanuatu | Vanua'aku Pati | 1991 1998-1999 | Donald Kalpokas | 0%
| |
| Kingdom of Serbia | People's Radical Party | 1894 1896-1897 | Đorđe Simić | 0%
| |
| Yugoslavia | League of Communists of Serbia | 1983-1984 | Dragoslav Marković | 0%
| |
| Yugoslavia | League of Communists of Croatia | 1981-1982 | Dušan Dragosavac | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1921 | Dzhabbarbergen Kuchkarov | 0%
| |
| Azerbaijan Soviet Socialist Republic | Azerbaijan Communist Party | 1989-1990 | Əbdürrəhman Vəzirov | 0%
| |
| Vanuatu | Vanua'aku Pati | 2001-2004 2008-2009 2009-2010 2011 | Edward Natapei | 0%
| |
| Polish People's Republic | Polish United Workers' Party | 1956 | Edward Ochab | 0%
| |
| Iranian Soviet Socialist Republic | Jangal Movement of Gilan | 1920 1921 | Ehsanollah Khan Dustdar | 0%
| |
| Sahrawi Arab Democratic Republic | Polisario | 1976 | El-Ouali Mustapha Sayed | 0%
| |
| Bukharan People's Soviet Republic | Communist Party of Bukhara | 1920-1923 | Fayzulla Xoʻjayev | 0%
| |
| Spain | Spanish Socialist Workers' Party | 1936-1937 | Francisco Largo Caballero | 0%
| |
| Democratic Republic of Timor-Leste | Fretilin | 1975 | Francisco Xavier do Amaral | 0%
| |
| Polish People's Republic | Polish Workers' Party | 1947 | Franciszek Trąbalski | 0%
| |
| Chad | Chadian Progressive Party | ![]() | 1960-1975 | François Tombalbaye | 0%
|
| Iskolats | Communist Party of Latvia | 1918 | Fricis Roziņš | 0%
| |
| Democratic Republic of the Sudan | Sudanese Socialist Union | 1969-1985 | Gaafar Nimeiry | 0%
| |
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1919 | Georgy Pyatakov | 0%
| |
| Socialist Soviet Republic of Armenia | Communist Party of Armenia | 1920-1921 | Gevorg Sargisovich Alikhanian | 0%
| |
| Romanian People's Republic | Romanian Workers' Party | 1947-1965 | Gheorghe Gheorghiu-Dej | 0%
| |
| San Marino | Sammarinese Socialist Party | ![]() | 1945-1957 | Gino Giacomini | 0%
|
| Chad | FROLINAT | 1979 1979-1982 | Goukouni Oueddei | 0%
| |
| Tunisia | Socialist Destourian Party | ![]() | 1964-1969 | Habib Bourguiba | 0%
|
| People's Democratic Republic of Yemen | Yemeni Socialist Party | 1986-1990 | Haidar Abu Bakr al-Attas | 0%
| |
| Armenia | Armenian Revolutionary Federation | 1920 | Hamo Ohanjanyan | 0%
| |
| Algeria | National Liberation Front | 1965-1978 | Houari Boumédiène | 0%
| |
| Armenia | Armenian Revolutionary Federation | ![]() | 1918-1919 | Hovhannes Kajaznuni | 0%
|
| Yemen Arab Republic | Military Command Council | 1974-1977 | Ibrahim al-Hamdi | 0%
| |
| Provisional People's Government of the Republic of Poland | Polish Socialist Party | 1918 | Ignacy Daszyński | 0%
| |
| Tuvan People's Republic | Tuvan People's Revolutionary Party | 1929-1932 | Irgit Shagdyrzhap | 0%
| |
| Ukrainian People's Republic | Ukrainian Social Democratic Labour Party | 1919-1920 | Isaak Mazepa | 0%
| |
| Uzbekistan | Communist Party of Uzbekistan | 1990-1991 | Islam Karimov | 0%
| |
| Commune of the Working People of Estonia | All-Union Communist Party (Bolsheviks) | 1918-1919 | Jaan Anvelt | 0%
| |
| Provisional People's Government of Mongolia | Mongolian People's Party | 1922-1923 | Jalkhanz Khutagt Sodnomyn Damdinbazar | 0%
| |
| People's Republic of the Congo | Congolese Party of Labour | 1979 | Jean-Pierre Thystère Tchicaya | 0%
| |
| Poland | Polish Socialist Party | 1918-1919 | Jędrzej Moraczewski | 0%
| |
| People's Republic of the Congo | Congolese Party of Labour | 1977-1979 | Joachim Yhombi-Opango | 0%
| |
| Vanuatu | Vanua'aku Pati | 2014-2015 | Joe Natuman | 0%
| |
| Spain | Spanish Socialist Workers' Party | 1937-1939 | Juan Negrín | 0%
| |
| Republic of Lithuania | Communist Party of Lithuania | 1940 | Justas Paleckis | 0%
| |
| Khorezm Socialist Soviet Republic | Communist Party of Khorezm | 1923-1924 | Karim Safayev | 0%
| |
| Socialist Soviet Republic of Lithuania and Belorussia | Communist Party of Lithuania and Byelorussia | 1919-1920 | Kazimierz Cichowski | 0%
| |
| Sahrawi Arab Democratic Republic | Polisario | 2016 | Khatri Addouh | 0%
| |
| Finnish Socialist Workers' Republic | Communist Party of Finland | ![]() | 1918 | Kullervo Manner | 0%
|
| Kingdom of Serbia | People's Radical Party | 1893 | Lazar Dokić | 0%
| |
| Yugoslavia | League of Communists of Macedonia | 1980-1981 | Lazar Mojsov | 0%
| |
| Senegal | Socialist Party of Senegal | ![]() | 1960-1980 | Léopold Sédar Senghor | 0%
|
| Tannu Tuvan People's Republic | Tuvan People's Revolutionary Party | 1922-1923 | Maady Lopsan-Osur | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1921 | Madrakhim Allabergenov | 0%
| |
| Sahrawi Arab Democratic Republic | Polisario | 1976 | Mahfoud Ali Beiba | 0%
| |
| Pakistan | Pakistan People's Party | 1996-1997 | Malik Meraj Khalid | 0%
| |
| Kingdom of Nepal | Communist Party of Nepal (Unified Marxist–Leninist) | ![]() | 1994-1995 | Man Mohan Adhikari | 0%
|
| São Tomé and Príncipe | Movement for the Liberation of São Tomé and Príncipe | 1975-1990 | Manuel Pinto da Costa | 0%
| |
| People's Republic of the Congo | Congolese Party of Labour | 1969-1977 | Marien Ngouabi | 0%
| |
| Finland | Finnish People's Democratic League | 1946-1948 | Mauno Pekkala | 0%
| |
| Kingdom of Serbia | People's Radical Party | 1901-1902 | Mihailo V. Vujić | 0%
| |
| Yugoslavia | League of Communists of Bosnia and Herzegovina | 1986-1987 | Milanko Renovica | 0%
| |
| Yugoslavia | League of Communists of Macedonia | 1989-1990 | Milan Pančevski | 0%
| |
| Uganda | Uganda People's Congress | 1966-1971 | Milton Obote | 0%
| |
| Azerbaijan Socialist Soviet Republic | Communist Party of the Soviet Union | 1920 | Mirzə Davud Hüseynov | 0%
| |
| Yugoslavia | League of Communists of Slovenia | 1982-1983 | Mitja Ribičič | 0%
| |
| Mali | Sudanese Union – African Democratic Rally | ![]() | 1960-1968 | Modibo Keïta | 0%
|
| Sahrawi Arab Democratic Republic | Polisario | 1976-2016 | Mohamed Abdelaziz | 0%
| |
| Algeria | Party of the Socialist Revolution | 1992-1992 | Mohamed Boudiaf | 0%
| |
| Mauritania | Mauritanian People's Party | 1961-1978 | Moktar Ould Dāddāh | 0%
| |
| Tuvan People's Republic | Tuvan People's Revolutionary Party | 1926-1927 | Mongush Buyan-Badyrgy | 0%
| |
| Tannu Tuvan People's Republic | Tuvan People's Revolutionary Party | 1921-1922 | Mongush Nimachap | 0%
| |
| Khorezm Socialist Soviet Republic | Communist Party of Khorezm | 1924 | Mukhamed Abdusalyamov | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1921 | Mulla Ata-Maksum Madrakhimov | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1920 | Mulla Dzhumaniyaz Sultanmuradov | 0%
| |
| Ukrainian Soviet Republic | Russian Social Democratic Labour Party (Bolsheviks) | ![]() | 1918 | Mykola Skrypnyk | 0%
|
| Khorezm Socialist Soviet Republic | Communist Party of Khorezm | 1924 | Nedirbay Aytakov | 0%
| |
| Democratic Republic of Timor-Leste | Fretilin | 1975-1978 | Nicolau dos Reis Lobato | 0%
| |
| Kingdom of Serbia | People's Radical Party | 1891-1892 1904-1905 1906-1908 1909-1911 | Nikola Pašić | 0%
| |
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1920 | Nikolay Bestchetvertnoi | 0%
| |
| Democratic Republic of Georgia | Georgian Menshevik Party | 1918-1921 | Noe Zhordania | 0%
| |
| Vietnam | Communist Party of Vietnam | 2001-2011 | Nông Đức Mạnh | 0%
| |
| Lesotho | Basutoland Congress Party | ![]() | 1993-1994 1994-1997 | Ntsu Mokhehle | 0%
|
| Iskolats | Communist Party of Latvia | ![]() | 1917 | Oto Kārkliņš | 0%
|
| Finnish Democratic Republic | Communist Party of Finland | ![]() | 1939-1940 | Otto Wille Kuusinen | 0%
|
| Tannu Tuvan People's Republic | Tuvan People's Revolutionary Party | 1923-1924 | Oyun Kyursedi | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1920-1921 | Palvanniyaz Khodja Yusupov | 0%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | 1932-1936 | Peljidiin Genden | 0%
| |
| Kingdom of Serbia | People's Radical Party | 1902 1908-1909 | Petar Velimirović | 0%
| |
| Latvian Socialist Soviet Republic | All-Union Communist Party (Bolsheviks) | 1918-1920 | Pēteris Stučka | 0%
| |
| Kingdom of Romania | Ploughmen's Front | 1945-1947 | Petru Groza | 0%
| |
| Socialist Soviet Republic of Georgia | Communist Party of Georgia | ![]() | 1921-1922 | Polikarp Mdivani | 0%
|
| People's Republic of Southern Yemen | National Liberation Front | 1967-1969 | Qahtan Muhammad al-Shaabi | 0%
| |
| Azerbaijan Socialist Soviet Republic | Communist Party of the Soviet Union | 1920-1921 | Qriqori Kaminski | 0%
| |
| Algeria | National Liberation Front | 1978-1979 | Rabah Bitat | 0%
| |
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1919-1920 | Rafail Farbman | 0%
| |
| Tajikistan | Communist Party of Tajikistan | 1991 1991-1992 | Rahmon Nabiyev | 0%
| |
| Soviet Manchuria | Communist Party of the Soviet Union | 1945-1946 | Rodion Malinovskyi | 0%
| |
| Syrian Arab Republic | Syrian Arab Socialist Ba'ath Party | 1966-1970 | Salah Jadid | 0%
| |
| Tuvan People's Republic | Tuvan People's Revolutionary Party | 1932-1944 | Salchak Toka | 0%
| |
| Turkmenistan | Communist Party of Turkmenistan | 1990-1991 | Saparmurat Niyazov | 0%
| |
| Kingdom of Serbia | People's Radical Party | 1888 1889-1891 1893-1894 1906 | Sava Grujić | 0%
| |
| Azerbaijan Socialist Soviet Republic | Azerbaijan Communist Party | 1921-1922 | Sergey Kirov | 0%
| |
| Azerbaijan People's Government | Azerbaijani Democratic Party | 1945-1946 | Seyid Cəfər Pişəvəri | 0%
| |
| Tannu Tuvan People's Republic | Tuvan People's Revolutionary Party | 1924-1926 | Shagdyr | 0%
| |
| Xinjiang Clique | Xinjiang People's Anti-Imperialist Association | 1935-1941 | Sheng Shicai | 0%
| |
| Armenia | Armenian Revolutionary Federation | 1920 | Simon Vratsian | 0%
| |
| Tuvan People's Republic | Tuvan People's Revolutionary Party | 1927-1929 | Sodnam Balchir | 0%
| |
| Polish People's Republic | Polish United Workers' Party | 1980-1981 | Stanisław Kania | 0%
| |
| Ukrainian Soviet Socialist Republic | Communist Party (Bolsheviks) of Ukraine | 1919 1920 | Stanisław Kosior | 0%
| |
| Yugoslavia | League of Communists of Vojvodina | 1980 | Stevan Doronjski | 0%
| |
| Yugoslavia | League of Communists of Croatia | 1988-1989 | Stipe Šuvar | 0%
| |
| Khorezm Socialist Soviet Republic | Communist Party of Khorezm | 1924 | Sultan-Kary Dzhumaniyazov | 0%
| |
| Kingdom of Serbia | People's Radical Party | 1894 | Svetomir Nikolajević | 0%
| |
| Wa State | United Wa State Party | 1989-1995 | Tax Cao Nyi | 0%
| |
| Wa State | United Wa State Party | 1995-Now | Tax Log Pang | 0%
| |
| Soviet Civil Administration in Korea | Communist Party of the Soviet Union | 1945-1946 | Terentii Shtykov | 0%
| |
| Vietnam | Communist Party of Vietnam | 1986 | Trường Chinh | 0%
| |
| Mongolian People's Republic | Mongolian People's Revolutionary Party | 1930-1932 | Tsengeltiin Jigjidjav | 0%
| |
| Moldova | Party of Communists of the Republic of Moldova | 2001-2008 | Vasile Tarlev | 0%
| |
| Yugoslavia | League of Communists of Montenegro | 1985-1986 | Vidoje Žarković | 0%
| |
| Azerbaijan Socialist Soviet Republic | Communist Party of the Soviet Union | 1920 | Viktor Naneyşvili | 0%
| |
| Byelorussian Soviet Socialist Republic | Communist Party of Byelorussia | 1920-1922 | Vilhelm Knorin | 0%
| |
| Moldova | Party of Communists of the Republic of Moldova | 2009 | Vitalie Pîrlog | 0%
| |
| Azerbaijan Socialist Soviet Republic | Communist Party of the Soviet Union | 1920 | Vladimir Dumbadze | 0%
| |
| Odessa Soviet Republic | Russian Social Democratic Labour Party (Bolsheviks) | ![]() | 1918 | Vladimir Yudovsky | 0%
|
| Ukrainian People's Republic | Ukrainian Social Democratic Labour Party | 1918-1919 | Volodymyr Chekhivsky | 0%
| |
| Ukrainian People's Republic | Ukrainian Social Democratic Labour Party | 1917 1917-1918 | Volodymyr Vynnychenko | 0%
| |
| Ukrainian People's Republic | Ukrainian Socialist-Revolutionary Party | 1918 | Vsevolod Holubovych | 0%
| |
| Vanuatu | Vanua'aku Pati | 1980-1991 | Walter Lini | 0%
| |
| Khorezm People's Soviet Republic | Communist Party of Khorezm | 1921-1922 | Yangibay Muradov | 0%
| |
| Azerbaijan Socialist Soviet Republic | Communist Party of the Soviet Union | 1920 | Yelena Stasova | 0%
| |
| Moldova | Party of Communists of the Republic of Moldova | 2008-2009 | Zinaida Greceanîi | 0%
| |
| South Ossetia | South Ossetian Regional Committee of the Communist Party of Georgia | 1991-1992 | Znaur Gassiyev | 0%
|