Social Democracy (Czech Republic)

Social Democracy
Sociální demokracie
AbbreviationSOCDEM
LeaderJiří Nedvěd
Deputy LeadersRadek Scherfer
Michal Chalupný
Alžběta Kálalová
Jiří Ott
FoundersJosef Boleslav Pecka
Ladislav Zápotocký
Founded7 April 1878 (1878-04-07)
HeadquartersLidový dům, Hybernská 1033/7, Prague 1
Think tankMasaryk Democratic Academy
Youth wingYoung Social Democrats
Women's wingSocial Democratic Women
Religious wingChristian Social Platform
Membership (2025)3,090
IdeologySocial democracy
Left-wing populism
Political positionCentre-left
National affiliationNational Front
(1945–1948)
Stačilo! (since 2025)
European affiliationParty of European Socialists
European Parliament groupProgressive Alliance of Socialists and Democrats
International affiliationProgressive Alliance
Socialist International
Colours  Pastel red
Chamber of Deputies
0 / 200
Senate
0 / 81
European Parliament
0 / 21
Regional councils
12 / 675
Governors of the regions
0 / 13
Local councils
799 / 61,780
Party flag
Website
socdem.cz

Social Democracy (Czech: Sociální demokracie, SOCDEM), known as the Czech Social Democratic Party (Czech: Česká strana sociálně demokratická, ČSSD) until 10 June 2023, is a social democratic political party in the Czech Republic. Sitting on the centre-left of the political spectrum, it is a member of the Party of European Socialists, the Socialist International, and the Progressive Alliance. Masaryk Democratic Academy is the party-affiliated's think tank.

The ČSSD was a junior coalition party within Second cabinet of Andrej Babiš' minority government from June 2018, and was a senior coalition party from 1998 to 2006 and from 2013 to 2017. It held 15 seats in the Chamber of Deputies of the Czech Republic following the 2017 Czech parliamentary election in which the party lost 35 seats. From 2018 to 2021, the party was led by Jan Hamáček, who has since been replaced by Michal Šmarda as leader after the 2021 Czech parliamentary election, in which the party lost all of its seats after falling below 5%.