• Marxist parties by continent (5 C)
• Marxist parties by country (27 C)

A

• All India Forward Bloc (2 C, 19 P)

C

• Communist Party of Bohemia and Moravia (2 C, 5 P)

G

• Guatemalan National Revolutionary Unity (1 C, 6 P)

H

• Hoxhaist parties (3 C, 52 P)

M

• Marxist–Leninist parties (5 C, 1 P)

P

• People's Mojahedin Organization of Iran (4 C, 13 P)
• Popular Front for the Liberation of Palestine (2 C, 21 P, 2 F)

R

• Red Party (Norway) (1 C, 7 P)
• Russian Social Democratic Labour Party (3 C, 16 P)

S

• Socialist Party of Great Britain (2 C, 5 P, 1 F)

U

• United Socialist Party of Venezuela (1 C, 12 P)

Y

• Yemeni Socialist Party (2 C, 6 P)

0–9

• 1st Congress of the Comintern

A

• Arab Nationalist Movement

C

• Communist Marxist Party (John)

F

• Freedom Bloc

N

• Naya Shakti Party, Nepal
• New Communist Party of Yugoslavia
• New Zealand Socialist Party

O

• Organization of Women's Freedom in Iraq

P

• Partido por la Victoria del Pueblo
• People's Movement of Kosovo
• Polisario Front
• Polish Labour Party - August 80
• Popular Front for the Liberation of Palestine
• Popular Idea of Equatorial Guinea

R

• Revolutionary Left Movement (Peru)
• Revolutionary Party of Central American Workers
• Revolutionary People's Party (Turkey, legal)
• Revolutionary Socialist Party (Marxist–Leninist)
• Revolutionary Vanguard
• Social Democratic Workers' Party of Romania

S

• Social Democracy of the Kingdom of Poland and Lithuania
• Social Democratic Party of Romania (1910–1918)
• Socialist Alternative (Poland)
• Socialist Labour Party of Croatia
• Socialist Party (Tunisia)
• Socialist Party of Ireland (1971)
• Socialist Party of Manzanillo
• Socialist Rebirth (2015)
• Socialist Workers and Farmers Party of Nigeria
• Socialist Workers' Party of Germany

T

• Tupamaro (Venezuela)

U

• Union of Communists in Bulgaria

W

• Workers and Socialist Party
• Workers' Party of Belgium
• World Socialist Party (Ireland)

Y

• Youlou United Liberation Movement