The following is a List of communist parties represented in European Parliament. This list does not contain communist parties previously represented in European Parliament. This article lists only those parties who officially call themselves communist ideologically. Seven communist parties have been elected to European Parliament in seven different countries.
| Country | Party | Political Alliance | Electoral Alliance | European Party | European Parliament Group | MEPs |
|---|---|---|---|---|---|---|
| Workers' Party of Belgium | The Left in the European Parliament – GUE/NGL | |||||
| Progressive Party of Working People | Party of the European Left (observer) | The Left in the European Parliament – GUE/NGL | ||||
| Communist Party of Bohemia and Moravia | Stačilo! | Party of the European Left (observer) | Non-Inscrits | |||
| Communist Party of Greece | European Communist Action | Non-Inscrits | ||||
| Portuguese Communist Party | Unitary Democratic Coalition | The Left in the European Parliament – GUE/NGL | ||||