Formerly Ruling
- Afghanistan, Democratic Republic of (1978–1992) - People's Democratic Party of Afghanistan
- Albania, People's Socialist Republic of (1944–1992) - Albanian Party of Labour
- Angola, People's Republic of (1975–1992) - abandoned Marxism-Leninism for social democracy - Popular Movement for the Liberation of Angola
- Benin, People's Republic of (1975–1990) - People's Revolutionary Party of Benin
- Bulgaria, People's Republic of (1944–1990) - Bulgarian Communist Party (known from 1938 to 1948 as the Bulgarian Workers Party)
- Chile (1970–1973) - Communist Party of Chile – participated in the ruling coalition
- Congo, People's Republic (1970–1992) - abandoned Marxism-Leninism for social democracy - Congolese Party of Labour
- Czechoslovak Republic (1948–1989) - Communist Party of Czechoslovakia
- Ethiopia, People's Democratic Republic (1974–1991) - Workers' Party of Ethiopia
- German Democratic Republic (East Germany) (1949–1990) - Socialist Unity Party of Germany
- Hungarian Soviet Republic (1919) - Hungarian Communist Party
- Hungarian People's Republic (1949–1990) - Hungarian Working People's Party, Hungarian Socialist Workers' Party
- Democratic Kampuchea (1976–1979) (in coalition 1975-1976) - Khmer Rouge
- Kampuchea, People's Republic (1979–1993) - Cambodian People's Party
- Korea, Democratic People's Republic of (1948-1992) - abandoned Marxism-Leninism for Juche Workers' Party of Korea
- Lithuanian-Belorussian Soviet Socialist Republic (1919) - Communist Party (bolsheviks) of Lithuania and Belorussia
- Moldova, Republic of (2001–2009) – Party of Communists of the Republic of Moldova – lead the ruling coalition
- Mongolian People's Republic (1924–1992) - Mongolian People's Revolutionary Party
- Mozambique, People's Republic of (1975–1992) abandoned Marxism-Leninism for social democracy - FRELIMO
- Poland, People's Republic of (1945–1989) - Polish United Workers Party
- Romania, Socialist Republic of (1947–1989) - Romanian Communist Party
- Republic of San Marino (1945–1957) - Sammarinese Communist Party
- Soviet Union (1922–1991) - Communist Party of the Soviet Union
- Spain (1936–1939) - Communist Party of Spain and POUM (part of the ruling coalition, Frente Popular).
- Ukrainian SSR (1918-1991) - Communist Party (Bolshevik) of Ukraine, regional section (originally as Social-Democracy of Ukraine) of the Russian Communist Party (bolshevik), banned in 1991
- Yemen, People's Democratic Republic of (1969–1990) - Yemeni Socialist Party
- Yugoslavia, Socialist Federal Republic of (1943–1990) - League of Communists of Yugoslavia
Read more about this topic: List Of Communist Parties
Famous quotes containing the word ruling:
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—Laurence Sterne (17131768)
“In each event of life, how clear
Thy ruling hand I see!
Each blessing to my soul more dear,
Because conferred by Thee.”
—Helen Maria Williams (18th century)