This is a list of parties and organizations that are either explicitly democratic socialist or include significant numbers of democratic socialist members (although many do not specifically include the term "Democratic Socialist" in their name). Due to the recent divergence away from traditional socialism in many western left-wing parties, the ideologies expressed in the policies of many of the parties is also listed. Some of these parties listed, such as the British Labour Party, Parti Québécois, Socialist Party (Portugal) and Social Democratic Party of Germany now advocate neo-liberal policies, despite once having a strong socialist character, and are not considered to be truly socialist by many on the left. On the other hand in many nations new leftwing parties with a strong socialist agenda have emerged and grown such as the Left Party of Germany or the Socialist Party of Ireland, siphoning off substantive votes from disenchanted supporters of the traditional leftwing parties.
- African National Congress, South Africa (social democracy, multiracialism)
- Arbeiderpartiet, Norway (Democratic Socialism, Social Democracy)
- Australian Labor Party (ALP), Australia (led by Kevin Rudd) (social democracy)
- Basque Socialdemocracy (EA) (Basque Country)
- Bloc Québécois, Quebec, Canada (officially advocates social democracy but includes strong neo-liberal and right-leaning elements, separation of Quebec, Quebec nationalism)
- Committee for Another Policy (CAP), Belgium (democratic socialism)
- Committees of Correspondence for Democracy and Socialism, USA
- Democratic Action Party (DAP), Malaysia
- Democratic Labor Party (DLP), South Korea
- Democratic Party of Socialists of Montenegro
- Democratic Socialist Party, Japan
- Democratic Socialists of America, USA
- Democrats of the Left, Italy
- European United Left - Nordic Green Left, European Union (partially communist)
- Farabundo Marti National Liberation Front, El Salvador
- Fijian Labour Party (FLP), Fiji
- Frelimo, Mozambique (social democracy)
- Habonim Dror, worldwide (labour Zionist youth movement)
- Irish Republican Socialist Party, Ireland (socialism, Irish Republicanism)
- Labour Party, Ireland (social democracy)
- Labour Party, Israel (social democracy, Labor Zionism)
- Labour Party, United Kingdom (social democracy, democratic socialism)
- Left Party, Germany (democratic socialism)
- Left Party, Sweden
- Liberty Union Party, Vermont, USA
- Meretz-Yachad, Israel (democratic socialism, Labor Zionism)
- Movement Towards Socialism, Bolivia (democratic socialism)
- Młodzi Socjaliści, Poland
- New Democratic Party (NDP), Canada (democratic socialism, social democracy)
- New Zealand Labour Party (NZLP), New Zealand (led by Helen Clark) (social democracy)
- New Zealand Progressive Party, New Zealand (coalition partner with the NZ Labour Party) (progressivism, democratic socialism)
- Parti Québécois, Quebec, Canada (social democracy, neo-liberalism, Quebec nationalism, separation of Quebec)
- Parti Socialiste, France (social democracy)
- Partido Liberal, Colombia
- Partido Socialista, Argentina
- Partido Socialista Obrero Español, Spain
- Partido Socialista, Peru (democratic socialism)
- Partido Socialista, Portugal (social democracy)
- Party of Communists of the Republic of Moldova - despite being a 'communist' party, the PCRM has followed a very social democratic political agenda since formed the government of Moldova.
- Party of European Socialists Europe
- Party of the Democratic Revolution, Mexico (democratic socialism)
- Party of the European Left, European Union
- Peace and Freedom Party, California, USA
- People's National Party, Jamaica (social democracy)
- Popular Movement for the Liberation of Angola, Angola (social democracy)
- Québec Solidaire (QS), Quebec, Canada (democratic socialism, altermondialism, separation of Quebec)
- Samajwadi Party, India
- Sandinista National Liberation Front, Nicaragua (democratic socialism)
- Scottish National Party, Scotland, UK (Social democracy, Scottish nationalism)
- Scottish Socialist Party, Scotland, UK (socialism, Scottish nationalism)
- Sinn Féin, Ireland (democratic socialism, social democracy, Irish Republicanism)
- Social Democratic and Labour Party, Northern Ireland (social democracy, Irish nationalism)
- Socialdemokraterne, Denmark
- Social Democratic Party of Pennsylvania
- Socialist Labour Party of Croatia
- Socialist Left Party, Norway
- Socialist Party (SP), The Netherlands
- Socialist Party of Canada, Canada (utopian socialism, internationalism)
- Socialist Party of Florida USA
- Socialist Party of Ireland, Ireland trotskyism, socialism
- Socialist Party of Massachusetts USA
- Socialist Party of Michigan USA
- Socialist Party of New Jersey USA
- Socialist Party of North Carolina USA
- Socialist Party of Oregon USA
- Socialist Party USA, USA (democratic socialism)
- Socialist Workers Movement (Puerto Rico) Puerto Rico
- Sojusz Lewicy Demokratycznej, Poland
- Solidarity, USA
- Somali Salvation Democratic Front, Somalia
- Sri Lanka Freedom Party, Sri Lanka
- Social Democratic Party of Finland (Suomen Sosialidemokraattinen Puolue, SDP), Finland
- United People's Freedom Alliance, Sri Lanka
- United Socialist Party of Venezuela, Venezuela (democratic socialism, Bolivarianism)
- Unity List, Denmark
- Workers Party of Brazil, Brazil (social democracy)
- Workers Party of Ireland, Ireland (Marxism)
- Young Democratic Socialists, USA
- Young People's Socialist League, USA
