This is a list of social democratic and democratic socialist parties which have governed countries, whether as the ruling party or as a member of a governing coalition. Most of these parties were members of the Socialist International.

Political parties CountryPartyYears in powerMember of SINotesHomeland Party1990–1992 Socialist Party of Albania 2013–present Armenian Revolutionary Federation yes Australian Labor Party 1904, 1908–1909, 1910–1913, 1914–1917, 1929–1932, 1941–1949, 1972–1975, 1983–1996, 2007–2013, 2022–present yes (formerly) Social Democratic Party of Austria1918–1921, 1945–1966, 1970–2000, 2007–2017, 2025–present yes (formerly) Bangladesh Awami League2009–present Barbados Labour Party1954–1961, 1976–1986, 1994–2008, 2018–present Democratic Labour Party1961–1976, 1986–1994, 2008–2018 Belgian Socialist Party1938–1939, 1945–1949, 1954–1958, 1973–1974 Parti socialiste2011–2014 Progressive Labour Party 1998–2012 Movement Towards Socialism2006–2025 Colombian Liberal Party yes Socialist Party of Chile1970–1973, 2006–2010, 2014–2018 yes Social Democracy1998–2006, 2013–2017, 2018–2021 yes Social Democracy yes Czech National Social Party no German Social Democratic Workers' Party in the Czechoslovak Republic no Brazilian Socialist Party2002–2014, 2023–present Socialism and Liberty Party2023–present Workers' Party2003–2016, 2023–present Bulgarian Socialist Party2002-2012 National Liberation Party 1948-1949, 1953-1958, 1962-1966, 1970-1978, 1982-1990, 1994-1998, 2006-2014 Social Democrats (Denmark) 1916–1920, 1924–1926, 1929–1945, 1947–1950, 1953–1968, 1971–1973, 1975–1982, 1993–2001, 2011–2015, 2019– Dominica Labour Party1961–1979, 2000–present Dominican Revolutionary Party1963, 1978–1986, 2000–2004 Democratic Left1988–1992 PAIS Alliance2007–2021 Farabundo Martí National Liberation Front2009–2019 Fiji Labour Party1987, 1999–2000 Social Democratic Party of Finland 1926–1927, 1937–1959, 1966–1991, 1995–2007, 2011–2015, 2019–2023 yes French Section of the Workers' International Socialist Party 1981–1995, 1997–2002, 2012–2017 yes Gibraltar Socialist Labour Party Social Democratic Party of Germany1918–1925, 1928–1930, 1966–1982, 1998–2009, 2013–present National Democratic Congress yes Panhellenic Socialist Movement1981–1989, 1993–2004, 2009–2012 Syriza 2015–2019 Siumut People's National Congress (Guyana)2015–present Hungarian Socialist Party 1994–1998, 2002–2010 yes Social Democratic Party of Hungary 1918–1919 Social Democratic Alliance 2009–2013 yes Indian National Congress1947–1977, 1980–1989, 1991–1996, 2004–2014 yes Sinn Féin 1919–22 Israeli Labor Party 1968–1977, 1984–1990, 1992–1996, 1999–2003, 2006–2011, 2020–2022 yes (formerly) Italian Socialist Party People's National Party1955–1962, 1972–1980, 1989–2007, 2012–2016 Japan Socialist Party 1947–1948 yes Armenian Revolutionary Federation yes Progressive Socialist Party yes Labour Party Labour Party Mauritian Militant Movement Militant Socialist Movement Mongolian People's Revolutionary Party Democratic Party of Socialists of Montenegro Socialist Union of Popular Forces Nepali Congress Labour1946, 1948–1958, 1973–1977, 1994–2002 Labour Party1935–1949, 1957–1960, 1972–1975, 1984–1990, 1999–2008, 2017–2023 observer Nigerien Party for Democracy and Socialism Labour Party 1928, 1935–1965, 1971–1972, 1973–1981, 1986–1989, 1990–1997, 2000–2001, 2005–2013, 2021–present observer Pakistan People's Party Polish Socialist Party Democratic Left Alliance 1993–1997, 2001–2005 New Left 2023–present Portuguese Socialist Party no Socialist Party1976–1978, 1983–1985, 1995–2002, 2005–2011, 2015–2024 yes Saint Kitts and Nevis Labour Party1960–1980, 1995–2015, 2022-present Saint Lucia Labour Party1960–1964, 1979–1982, 1997–2006, 2011–2016, 2021–present Saint Vincent Labour Party1967–1972, 1974–1984 Unity Labour Party2001–2025 Democratic Party 2000–2003, 2008–2012 yes Party of the Democratic Left yes Party of Civic Understanding no Direction – Social Democracy2006–2010, 2012–2020, 2023-present yes Voice – Social Democracy2023-presentno African National Congress 1994–present yes Spanish Socialist Workers' Party 1931–1933, 1936–1939, 1982–1996, 2004–2011, 2018–present yes Sri Lanka Freedom Party1956–1960, 1960–1965, 1970–1977, 1994–2022 no Janatha Vimukthi Peramuna2004–2005, 2024–present no Swedish Social Democratic Party1917–1920, 1921–1923, 1924–1926, 1932–1976, 1982–1991, 1994–2006, 2014–2022 Tanganyika African National Union1962–1977 Chama Cha Mapinduzi1977–present yes United National Congress1995–2001, 2010–2015, 2025-present Republican People's Party1923–1950, 1961–1965, 1971–73, 1974, 1977, 1978–1979, 1995–1996 Social Democratic People's Party1991–1995 Democratic Left Party1997–2002 Peoples' Democratic Party2015 Labour Party 1915–1922, 1924, 1929–1951, 1964–1970, 1974–1979, 1997–2010, 2024–present observer Socialist Party of Uruguay2005–present yes Democratic Action1945–1948, 1959–1969, 1974–1979, 1984–1993

Currently represented The following is a list of democratic socialist or partially democratic socialist parties which are currently being represented in the legislature of their country. It does not include democratic socialist parties that are mainly social democratic and are considered to their right within the centre-left.

PartyCountryDate established% of popular votein the latest electionSeats in the legislature(lower chamber if bicameral)Movement for Socialism199855.10% (2020)Broad Front197140.49% (2019)Party of Socialists of the Republic of Moldova199727.17% (2021)National Unity of Hope200217.92% (2019)Labour Party190033.70% (2024)Scottish National Party193638.18% (2026)Plaid CymruNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 28 November 2018.192535.41% (2026)Social Democratic and Labour Party19709.1% (2022)Sinn FéinNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 30 December 2015.190529% (2022)190524.53% (2020)SyrizaNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 13 February 2020.200417.83% (2023)Farabundo Martí National Liberation Front19806.91% (2021)Inuit Ataqatigiit197637.44% (2021)Left-Green MovementNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 30 December 2015.199912.57% (2021)Democratic Socialist LeftNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 18 January 2019.201716.49% (2019)Party of Socialists and Democrats200513.13% (2019)Guasú Front201011.83% (2018)Peoples' Democratic PartyNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 30 December 2015.(Entered the 2023 elections from the Peoples' Equality and Democracy Party lists)20128.82% (2023)Workers' PartyLowy, Michael; Denner, Arthur, trans. (Autumn 1987). "A New Type of Party: The Brazilian PT". SAGE Publications. Contemporary Issues. Latin American Perspectives. 14 (4): 453–464. .Nylen, William R. (1 January 2000). "The Making of a Loyal Opposition: The Workers' Party (PT) and the Consolidation of Democracy in Brazil". In Kingstone, Peter R.; Power, Timothy Joseph. Democratic Brazil: Actors, Institutions, and Processes. University of Pittsburgh Press. p. 126. .Baiocchi, Gianpaolo (17 October 2003). Radicals in Power: The Workers' Party and Experiments in Urban Democracy in Brazil. Zed Books. .Samuels, David. (1 November 2004). "From Socialism to Social Democracy: Party Organization and the Transformation of the Workers' Party in Brazil". SAGE Publications. Comparative Political Studies. 37 (9): 999–1024. .Anderson, Gary L.; Herr, Kathryn G., eds. (13 April 2007). Encyclopedia of Activism and Social Justice. "Partido dos Trabalhadores". SAGE Publications. p. 1095. .Hunter, Wendy (April 2007). "The Normalization of an Anomaly: The Workers' Party in Brazil". Cambridge University Press. World Politics. 59 (3): 440–475. .Keck, Margaret E. (25 September 2007). "Brazil's PT: Socialism as Radical Democracy". NACLA. Retrieved 14 February 2020.198010.30% (2018)Unidas PodemosNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 13 February 2020.201612.86% (2019)The Left20144.46% (2022)The Left20074.9% (2021)Socialist PartyNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 13 February 2020.19716% (2021)Socialist Party of Serbia199011.79 (2022)Left AllianceNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 30 December 2015.19908.17% (2019)Left PartyNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 14 February 2020.19178.02% (2018)Socialist People's PartyNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 13 February 2020.19597.71% (2019)New Democratic Party196115.98% (2019)Red–Green Alliance19896.93% (2019)A Just RussiaNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 19 January 2019.20066.34% (2016)Broad Front"The political framework of Peru". Nordea Trade Portal. Retrieved 14 February 2020. "Broad Front: left-wing to far-left, democratic socialism, feminism, anti-capitalism."Lozada, Lucas Iberico (22 August 2016). "Peru's Rising Democratic Left". Dissident. Retrieved 14 February 2020.20136.18% (2020)Socialist LeftNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 30 December 2015.19756.02% (2017)Brazilian Socialist Party19475.52% (2018)Democratic Labour Party19794.68% (2018)La France insoumise201611.03% (2017)The LeftNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 30 December 2015.19995.48% (2018)Socialism and Liberty Party20042.85% (2018)Free and EqualNordsieck, Wolfram. "Parties and Elections in Europe". Parties-and-elections.eu. Retrieved 10 January 2018.20173.39% (2018)Movement of Socialist Democrats19781.04% (2019)Armenian Revolutionary Federation18903.89% (2018)Workers' Party195714.99% (2025) Parties which are also social democratic.

See also List of social democratic parties List of democratic socialist parties and organizations List of socialist parties with national parliamentary representation List of communist parties represented in European Parliament

References