Former
- Afghanistan - Parcham faction of the People's Democratic Party of Afghanistan, became Democratic Watan Party of Afghanistan
- Albania - Party of Labour of Albania, became Socialist Party of Albania
- Brazil - Brazilian Communist Party, became Popular Socialist Party
- Bulgaria - Bulgarian Communist Party, became Bulgarian Socialist Party
- Cambodia - Cambodian People's Party
- Estonia - Communist Party of Estonia, Communist Party of Estonia (on CPSU platform)
- Ethiopia - All-Ethiopian Socialist Movement
- Germany (East) - Socialist Unity Party of Germany, became Party of Democratic Socialism, and is now known as "The Left".
- Hungary - Hungarian Socialist Workers' Party, became Hungarian Socialist Party
- Iceland - Communist Party of Iceland
- Italy - Italian Communist Party, became the Democratic Party of the Left, which later merged into the Democrats of the Left, which in turn merged into the Democratic Party
- Mongolia - Mongolian People's Revolutionary Party
- Netherlands - Communist Party of the Netherlands
- Nicaragua - Socialist Party of Nicaragua
- Sweden - Left Party - Communists, became Left Party
- Palestine - Palestine Communist Party, became Palestinian People's Party
- Poland - Polish United Workers Party, became Alliance of the Democratic Left
- Romania - Communist Party of Romania, became National Salvation Front the descendants of which are Democratic Liberal Party and Social Democratic Party
- San Marino - Communist Party of San Marino, became Party of Democrats
- Tunisia - Tunisian Communist Party, became Movement for Renewal
- Yemen - Yemeni Socialist Party
Read more about this topic: Communist Parties In The United States