Largest Political Parties In Europe

Name the largest political parties by membership in Europe

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<50,000 members

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Last updated: February 20, 2026

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First submitted	February 16, 2026
Times taken	56
Average score	46.4%
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Membership	Ideology	Country	Party
2,600,000	Authoritarian Conservatism	Russia	United Russia
806,000	Conservatism	Spain	People's Party
700,000	Liberal Populism	Serbia	Serbian Progressive Party
600,000	Christian Democracy	Austria	Austrian People's Party
540,000	Democratic Socialism	France	La France Insoumise
530,000	Social Democracy	Romania	Social Democratic Party
400,000	Social Democracy	Russia	A Just Russia
365,190	Social Democracy	Germany	Social Democratic Party of Germany
363,100	Christian Democracy	Germany	Christian Democratic Union of Germany
295,018	Ultranationalism	Russia	Liberal Democratic Party of Russia
268,000	Right-Wing Populism	United Kingdom	Reform UK
250,000	Social Democracy	United Kingdom	Labour Party
210,384	Conservatism	Croatia	Croatian Democratic Union
200,000	Statism	Belarus	Belaya Rus
195,000	Green Politics	United Kingdom	Green Party of England and Wales
192,707	Social Democracy	Bosnia & Herzegovina	Alliance of Independent Social Democrats
190,000	Democratic Socialism	Greece	Syriza
182,000	Christian Democracy	Romania	National Liberal Party
170,000	Populism	Italy	Five Star Movement
166,000	Green Politics	Germany	Alliance 90/The Greens
165,000	Social Democracy	Italy	Democratic Party
160,000	National Conservatism	France	National Rally
160,000	Communism	Russia	Communist Party of the Russian Federation
152,913	Social Democracy	Spain	Spanish Socialist Workers' Party
140,000	Social Democracy	Austria	Social Democratic Party of Austria
138,800	Left-Wing Populism	Spain	Podemos
135,000	Ultranationalism	Russia	Rodina
130,000	National Conservatism	Italy	Brothers of Italy
125,300	Christian Democracy	Germany	Christian Social Union In Bavaria
123,126	Democratic Socialism	Germany	Die Linke
123,000	Liberal Conservatism	United Kingdom	Conservative Party
122,000	Federalism	Italy	Lega Nord
120,000	Liberalism	Switzerland	The Liberals
110,000	Liberal Conservatism	Italy	Forza Italia
100,000	Right-Wing Populism	Italy	Lega
100,000	(Pensioners' Interests)	Serbia	PUPS - Solidarity and Justice
100,000	Social Democracy	Serbia	Socialist Party of Serbia
93,943	Social Democracy	Portugal	Socialist Party
93,000	Social Democracy	Albania	Socialist Party of Albania
91,500	Liberal Conservatism	Portugal	Social Democratic Party
90,000	National Conservatism	Switzerland	Swiss People's Party
80,000	Nationalism	United Kingdom	Restore Britain
78,257	Social Democracy	Sweden	Swedish Social Democratic Party
75,000	National Conservatism	France	Reconquête
73,000	Conservatism	Poland	Polish People's Party
72,251	Liberal Conservatism	France	The Republicans
70,000	Right-Wing Populism	Germany	Alternative for Germany
70,000	Liberalism	Germany	Free Democratic Party
70,000	National Conservatism	Portugal	Chega
63,468	Ultranationalism	Spain	Vox
60,163	National Conservatism	Netherlands	Forum for Democracy
60,000	Liberalism	United Kingdom	Liberal Democrats
60,000	Liberalism	Belgium	Anders
56,011	Separatism	United Kingdom	Scottish National Party
55,867	Right-Wing Populism	Belarus	Liberal Democratic Party of Belarus
51,078	(Political Satire)	Germany	Die PARTEI