• Social democratic parties in Africa (16 C, 76 P)
• Social democratic parties in Asia (31 C, 50 P)
• Social democratic parties in Europe (44 C, 46 P)
• Social democratic parties in North America (4 C, 25 P)
• Social democratic parties in Oceania (1 C, 6 P)
• Social democratic parties in South America (8 C, 15 P)

?

• Social democratic parties by country (69 C)

*

• Defunct social democratic parties (7 C, 30 P)

Y

• Youth wings of social democratic parties (1 C, 68 P)

• List of social democratic parties

0–9

• 24 October Movement

A

• Åland Social Democrats

B

• Birimdik

D

• Democratic Left Party (Turkey)
• List of democratic socialist parties and organizations

H

• Hamaikabat
• History of the Labour Party (Ireland)

I

• Independent Social Democratic Party (Czech Lands)
• Innovation and Unity Party

J

• Justice Social Democratic Party

L

• Labour Party (Malta)
• Let's Go Peru
• Lithuanian Regions Party
• Luxembourg Socialist Workers' Party

M

• Maldives Labour and Social Democratic Party
• Meimad
• Morena (political party)
• Movement for Democratic Change Alliance
• EDEK Socialist Party
• Movement for the Liberation of São Tomé and Príncipe – Social Democratic Party

N

• NasDem Party
• National Awakening (Iceland)
• National Democratic Front (Mexico)
• National United Party (Vanuatu)
• Nationwide Social Democratic Party
• NEDA Party
• New Nation Coalition
• New Social Democratic Party
• Ngwane National Liberatory Congress

P

• Party for Change in Turkey
• Party for Democracy and Progress (Burkina Faso)
• Party of Democrats
• Party of European Socialists
• Pashtoons Social Democratic Party
• People's Alliance (Iceland)
• People's National Party
• Peoples' Democratic Party (Turkey)
• PNG Labour Party
• Polisario Front
• Polish Left
• Political Wing of the FAL
• Popular Liberation Front (Guatemala)

R

• Radical Party of Chile (2018)
• Rebirth of the Social Democratic Party
• Republican People's Party
• Republican Turkish Party

S

• Social Democratic Party of Saarland
• Sandinista Renovation Movement
• Scottish National Party
• Siumut
• Social Democratic and Labour Party
• Social Democratic Convention
• Social Democratic Front (Cameroon)
• Social Democratic Labour Party of Norway
• Social Democratic Left Party of Sweden (1921)
• Social Democratic Party – Dusabikanye
• Social Democratic Party (Andorra)
• Social Democratic Party (Bahamas)
• Social Democratic Party (Cape Verde)
• Social Democratic Party (El Salvador)
• Social Democratic Party (Gabon)
• Social Democratic Party (Iceland)
• Social Democratic Party (Tajikistan)
• Social Democratic Party (Thailand)
• Social Democratic Party/Jant Bi
• Social Democratic Party of China
• Social Democratic Party of Finland
• Social Democratic Party of Georgia
• Social Democratic Party of Germany
• Social Democratic Party of Kyrgyzstan
• Social Democratic Party of Lithuania
• Social Democratic Party of Madagascar
• Social Democratic Party of Russia (1990)
• Social Democratic Party of Russia (2012)
• Social Democratic Party of Switzerland
• Social Democratic Party of the Free City of Danzig
• Social Democratic Party of the Memel Territory
• Social Democratic Party of Transnistria
• Social Democratic Union of Workers and Smallholders
• Social Democrats of Uganda
• Social Movement for Renewal
• Social-Democratic Party of Abkhazia
• Socialist Party (Belgium)
• Socialist Party (France)
• Spanish Democratic Socialist Party

T

• Taharror
• Taqaddom (Lebanon)

U

• Umbrella for Democratic Change
• Union of Citizens of Georgia
• United Movement for Democratic Change
• United Progressive Party (Barbados)

V

• Vooruit (political party)