Every Political Party To Have Been In Power S-Z

Give the names of the parties that have ruled every currently existing country throughout their histories. Names have been edited out of symbols unless they are not written in latin script.
The following countries have had no parties in power since their independence: Bahrain, eSwatini, Kuwait, Micronesia, Oman, Palau, Qatar, Saudi Arabia, Tuvalu, United Arab Emirates, and Vatican City
Independent leaders are ignored unless the government has a clear majority party or they are a de facto member/leader of the party.
Both North Vietnam and South Vietnam as well as North Yemen and South Yemen are included. Modern Yemen has two overlapping due to rival governments.
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Last updated: January 5, 2026
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First submittedApril 10, 2025
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Country
Years
Position
Symbol
Answer
Saint Vincent and the Grenadines
1979-1984
Centre Left
Saint Vincent Labour Party
1984-2001
Centre Right
New Democratic Party
2001-Now
Left
Unity Labour Party
Samoa
1982-1982 1982-2021
Centre Right
Human Rights Protection Party
2021-2025 2025-Now
Centre Right
Faʻatuatua i le Atua Samoa ua Tasi
2025-Now
Centre Right
Samoa Ua Potopoto
San Marino
1920-1923
Centre
Sammarinese People's Party
1923-1943 1943-1944
Far Right
Sammarinese Fascist Party
1943-1943
Big Tent
Lista Unica
1945-1959 1978-1988
Left
Committee of Freedom / Communist-Socialist Coalition
1959-1978 1988-2006 2012-2016 2019-Now
Centre Right
Sammarinese Christian Democratic Party
2006-2008
Centre Left
Party of Socialists and Democrats
2008-2012
Centre
Pact for San Marino
2012-2016
Centre Left
Adesso.sm
São Tomé and Príncipe
1975-1991
Pre-1990: Left 1990-Now: Centre Left
Movement for the Liberation of São Tomé and Príncipe – Social Democratic Party
1991-1991
Centre
Democratic Convergence Party
1991-1995 1995-2001 2011-Now
Centre
Independent Democratic Action
2001-2003 2003-2011
Centre
Force for Change Democratic Movement – Liberal Party
Senegal
1960-2000
Centre Left
Socialist Party of Senegal
2000-2012
Centre
Senegalese Democratic Party
2012-2024
Centre
Alliance for the Republic
2024-Now
Left
PASTEF
Serbia
2006-2012
Right
Democratic Party of Serbia
2012-2014
Centre Left
Socialist Party of Serbia
2014-Now
Big Tent
Serbian Progressive Party
Seychelles
1976-1977
Right
Seychelles Democratic Party
1977-2020 2025-Now
1977-1991: Far Left 1991-Now: Centre Left
Seychelles People's United Party / Seychelles People's Progressive Front / People's Party / United Seychelles
2020-2025
Centre
Seychelles National Party
Sierra Leone
1971-1992 2007-2018
1971-1992: Left 1992-Now: Centre Left
All People's Congress
1996-1997 1998-2007 2018-Now
Pre-2012: Centre Right 2012-Now: Centre
Sierra Leone People's Party
Singapore
1959-Now
Centre Right
People's Action Party
Slovakia
1993-1994 1994-1998
Syncretic
People's Party – Movement for a Democratic Slovakia
1994-1994
Centre
Democratic Union of Slovakia
1998-2002
Centre Right
Slovak Democratic Coalition
2002-2006 2010-2012
Centre Right
Slovak Democratic and Christian Union – Democratic Party
2006-2010 2012-2020 2023-Now
Centre Left
Direction – Social Democracy
2020-2023
Centre
Ordinary People and Independent Personalities / Slovakia
Slovenia
1990-1992
Centre Right
Slovene Christian Democrats
1992-2000 2000-2004
Centre
Liberal Democracy of Slovenia
2000-2000
Centre Right
Slovenian People's Party
2000-2000
Centre Right
New Slovenia
2004-2008 2012-2013 2020-2022
Right
Slovenian Democratic Party
2008-2012
Centre Left
Social Democrats
2013-2014
Centre
Positive Slovenia
2014-2014
Centre
Party of Alenka Bratušek
2014-2018
Centre
Modern Centre Party
2018-2020
Centre
List of Marjan Šarec
2022-Now
Centre
Freedom Movement
Solomon Islands
1978-1981 1984-1989
Centre
Solomon Islands United Party
1981-1984 1989-1993 2001-2006
Centre
People's Alliance Party
1997-2000 2007-2010
Centre
Solomon Islands Liberal Party
2000-2001
Centre
People's Progressive Party
2006-2006
Centre
Association of Independent Members
2006-2007
Centre
Solomon Islands Social Credit Party
2010-2011
Centre
Reform Democratic Party
2011-2014
Centre
Solomon Islands Party for Rural Advancement
2017-2019
Centre
Democratic Alliance Party
2019-Now
Centre
Ownership, Unity and Responsibility Party
Somalia
1960-1969
Centre
Somali Youth League
Somali Democratic Republic
1976-1991
Far Left
Somali Revolutionary Socialist Party
Interim Government of Somalia
1991-1997
Centre Right
United Somali Congress
Somalia (De Facto)
2000-2007
Right
Islamic Courts Union
Transitional Federal Government of Somalia
2007-2008
N/A
Transitional Federal Government of Somalia
Transitional Federal Government of Somalia
2009-2012
Centre Right
Alliance for the Re-liberation of Somalia
Somalia
2012-2017
Centre Right
Peace and Development Party
2017-2022
Centre
Tayo Political Party
2022-Now
Centre Right
Union for Peace and Development Party
Somaliland
1991-1993
Right
Somali National Movement
1997-2010
Centre Right
United Peoples' Democratic Party
2010-2024
Centre
Kulmiye Peace, Unity, and Development Party
2024-Now
Syncretic
Waddani
Union of South Africa
1910-1924
Right
South African Party
Union of South Africa & Republic of South Africa
1924-1934 1948-1994
Far Right
National Party
Union of South Africa
1934-1948
Centre Right
United Party
South Africa
1994-Now
Centre Left
African National Congress
South Korea
1948-1952
Right
National Association
1952-1960
Far Right
Liberal Party
1960-1962
Centre Right
Democratic Party
1963-1979
Far Right
Democratic Republican Party
1981-1990
Pre-1987: Far Right 1987-1990: Right
Democratic Justice Party
1990-1997
Centre Right
Democratic Liberal Party / New Korea Party
1998-2000
Centre
National Congress for New Politics
2000-2002 2003-2004
Centre
Millennium Democratic Party
2004-2007
Centre Left
Uri Party
2008-2017
1998-2012: Centre Right 2012-Now: Right
Grand National Party / Saenuri Party / Liberty Korea Party
2017-2024
Centre
Democratic Party of Korea
2024-Now
Right
People Power Party
South Ossetia
2001-2014
Centre
Unity Party
2014-2022
Centre Right to Right
United Ossetia
2022-Now
Centre
Nykhas
South Sudan
2011-Now
Centre Left
Sudan People's Liberation Movement
Spain
1834-1835 1836-1836 1837-1840 1844-1854 1856-1858 1863-1865 1866-1868
Centre
Moderate Party
1835-1836 1836-1837 1840-1844 1854-1856 1869-1870
Centre Left
Progressive Party
1856-1856 1858-1863 1865-1866 1868-1869 1870-1871
Centre
Liberal Union
Spanish Republic
1871-1871 1872-1873
Centre Left
Radical Democratic Party
1871-1872 1874-1874
Centre
Constitutional Party
1873-1874
Left
Federal Democratic Republican Party
Spain
1874-1881 1884-1885 1890-1892 1895-1897 1900-1901 1902-1905 1907-1909 1913-1915 1917-1917 1919-1921
Centre Right
Liberal Conservative Party
1881-1883 1885-1890 1892-1895 1897-1899 1901-1902 1905-1907 1909-1913 1915-1917
Centre
Liberal Fusionist Party / Liberal Party
1883-1884
Centre
Dynastic Left
1899-1900
Centre Right
Conservative Union
1917-1917 1917-1918 1918-1918 1922-1923
Centre
Liberal Democratic Party
1918-1918 1919-1919 1921-1922
Centre Right
Maurist Party
1925-1930
Right
Patriotic Union
Spanish Republic & Spain
1931-1933 1936-1939 1982-1996 2004-2011 2018-Now
Pre-1979: Left 1979-Now: Centre Left
Spanish Socialist Workers' Party
Spanish Republic
1933-1935
Centre
Radical Republican Party
1935-1935
Right
CEDA
1935-1936
Centre
Party of the Democratic Centre
1936-1936
Centre Left
Republican Left
Spain
1938-1976
Far Right
FET y de las JONS
1976-1977
Right
Spanish People's Union
1977-1982
Centre
Union of the Democratic Centre
1996-2004 2011-2018
Centre Right
People's Party
Ceylon & Sri Lanka
1947-1956 1960-1960 1965-1970 1977-1994 2022-2024
Centre Right
United National Party
1956-1960 1960-1965 1970-1977 1994-2019
Centre Left
Sri Lanka Freedom Party
Sri Lanka
2019-2022
Right
Sri Lanka Podujana Peramuna
2024-Now
Pre-2024: Far Left 2024-Now: Left
Janatha Vimukthi Peramuna
Republic of Sudan
1956-1956
Centre Right
Democratic Unionist Party
1956-1958 1964-1969 1986-1989
Centre
National Umma Party
Democratic Republic of Sudan
1971-1985
Left
Sudanese Socialist Union
Sudan
1989-2019
Right
National Congress Party
Suriname
1975-1980 1990-1996 2000-2010
Centre Left
National Party of Suriname
1988-1990 2020-2025
Centre
Progressive Reform Party
1996-2000 2010-2020 2025-Now
Centre Left
National Democratic Party
Sweden
1876-1883 1902-1905 1906-1911 1928-1930
Centre Right
Lantmanna Party
1889-1900 1905-1905
Centre Right
Protectionist Party
1911-1914 1917-1920
Right
Liberal Party of Sweden
1917-1917 1923-1924
Centre Right
National Party
1920-1923 1924-1926 1932-1936 1936-1976 1982-1991 1994-2006 2014-2022
Centre Left
Swedish Social Democratic Party
1926-1928 1930-1932 1978-1979
Centre Right
Freeminded People's Party / People's Party / The Liberals
1936-1936 1976-1978 1979-1982
Centre Right
Farmers' League / Centre Party
1991-1994 2006-2014 2022-Now
Centre Right
Moderate Party
Switzerland
1848-1935 1947-1955 1959-1963 1971-1975 1979-1995
Centre Right
Radical Left / Free Democratic Party
1935-1939 1943-1947 1955-1959 1963-1971 1975-1979 1995-2003
Centre Left
Social Democratic Party of Switzerland
2003-Now
Right
Swiss People's Party
Syrian Republic
1946-1948
Big Tent
National Bloc
1949-1952
Syncretic
Syrian Social Nationalist Party
1952-1954
Centre
Arab Liberation Movement
1954-1954 1955-1955 1956-1958
Centre Right
National Party
1954-1955 1961-1963
Centre Right
People's Party
Syrian Arab Republic
1963-1966
Left
Arab Socialist Ba'ath Party
1966-2024
Left to Far Left
Syrian Arab Socialist Ba'ath Party
Syria
2024-Now
Far Right
Hay'at Tahrir al-Sham
Taiwan
1949-2000 2008-2016
1912-1926 Big Tent 1926-1949: Right 1949-1975: Far Right Post-1975: Centre Right
Kuomintang
2000-2008 2016-Now
Centre
Democratic Progressive Party
Tajikistan
1991-1994
Far Left
Communist Party of Tajikistan
1994-Now
Big Tent
People's Democratic Party of Tajikistan
Tanganyika & Tanzania
1962-1977
Left
Tanganyika African National Union / Tanzania African National Union
Tanzania
1977-Now
1977-1985: Left 1985-Now: Centre Left
Chama Cha Mapinduzi
Siam & Thailand
1933-1945 1946-1946 1948-1955
Syncretic
Khana Ratsadon
Thailand
1945-1946
Big Tent
Free Thai Movement
1946-1947
Centre Left
Constitutional Front
1947-1948 1975-1975 1976-1976 1992-1995 1997-2001 2008-2011
Centre Right
Democrat Party
1955-1957
Far Right
Seri Manangkhasila Party
1958-1958
Far Right
National Socialist Party
1968-1971
Right
United Thai People's Party
1975-1976
1974-1980: Centre Left 1980-2018: Centre Right
Social Action Party
1988-1991 1995-1996
Right
Thai Nation Party
1996-1997
Centre
New Aspiration Party
2001-2006
Centre Right
Thai Rak Thai Party
2008-2008
Centre
People's Power Party
2011-2014 2023-2025
Centre Right
Pheu Thai Party
2019-2022
Right
Palang Pracharath Party
2023-2023
2021-2023: Far Right 2023-Now: Right
United Thai Nation Party
2025-Now
Centre Right
Bhumjaithai Party
Democratic Republic of East Timor & Timor-Leste
1975-1979 2002-2006 2007-2007 2015-2018
1975-1981: Left 1981-1984: Far Left 1984-Now: Centre Left
Fretilin
Timor-Leste
2007-2015 2023-Now
Centre Left
National Congress for Timorese Reconstruction
2018-2023
Centre
People's Liberation Party
Togo
1960-1963
Centre Left
Party of Togolese Unity
1963-1967
Centre
Togolese People's Movement
1969-2012
Right
Rally of the Togolese People
2012-Now
Right
Union for the Republic
Tonga
2006-2010
Centre Left
Human Rights and Democracy Movement
2014-2019
Big Tent
Democratic Party of the Friendly Islands
2019-2021
Centre Left
Tonga People's Party
Transnistria
2005-Now
Centre
Obnovlenie
Trinidad and Tobago
1962-1986 1991-1995 2001-2010 2015-Now
Centre
People's National Movement
1986-1991
Centre Left
National Alliance for Reconstruction
1995-2001 2010-2015
Centre Left
United National Congress
Tunisia
1957-1964
Centre
Neo Destour
1964-1988
1964-1986: Left 1986-Now: Centre Left
Socialist Destourian Party
1988-2011
Centre Left
Democratic Constitutional Rally
2011-2014 2019-2022
Centre Right
Ennahda Movement
2014-2019
Centre
Nidaa Tounes
Ottoman Empire
1908-1909
Centre
Ottoman Liberty Party
1909-1918
Right
Ottoman Committee of Union and Progress
Türkiye
1923-1950 1973-1983
Centre Left
Republican People's Party
1950-1960
Centre Right
Democrat Party
1965-1973
Centre Right
Justice Party
1983-1991
Centre
Motherland Party
1991-1999
Centre Right
True Path Party
1999-2002
Centre Left
Democratic Left Party
2002-Now
Right
Justice and Development Party
Turkmenistan
1990-1991
Far Left
Communist Party of Turkmenistan
1991-Now
Centre Right
Democratic Party of Turkmenistan
Uganda
1963-1971 1979-1985
Centre Left
Uganda People's Congress
1985-1986
Big Tent
Uganda National Liberation Front
1986-Now
1986-1987: Left 1987-Now: Right
National Resistance Movement
Ukraine
1990-1991
Far Left
Communist Party of Ukraine
1993-2002
1993-2010: Far Left 2010-2022: Centre Right
Communist Party of Ukraine (1993)
2002-2005 2010-2014
Centre Left
Party of Regions
2005-2010
Centre Right
Our Ukraine
2014-2014
Centre
Batkivshchyna
2014-2019
Centre Right
Petro Poroshenko Bloc / European Solidarity
2019-Now
Centre
Servant of the People
Kingdom of Great Britain & United Kingdom
1721-1762 1763-1770 1782-1783 1806-1807 1830-1834 1835-1841 1846-1852 1855-1858
Centre
Whigs
1762-1763 1770-1782 1783-1806 1807-1830 1834-1834
Centre Right
Tories
United Kingdom
1834-1835 1841-1846 1852-1852 1858-1859 1866-1868 1874-1880 1885-1886 1886-1892 1895-1905 1923-1924 1924-1929 1935-1945 1951-1963 1970-1974 1979-1997 2010-2024
Right
Conservative Party
1852-1855
Centre Right
Peelite
1859-1866 1868-1874 1880-1885 1886-1886 1892-1895 1905-1922
Centre
Liberal Party
1922-1923 1963-1964
Centre Right
Unionist Party
1924-1924 1929-1931 1945-1951 1964-1970 1974-1979 1997-2010 2024-Now
Centre Left
Labour Party
1931-1935
Centre Left
National Labour Organisation
United States
1797-1801
Centre Right
Federalist Party
1801-1828
Centre Right
Democratic-Republican Party
1828-1829
Centre Right
National Republican Party
1829-1841 1845-1849 1853-1861 1868-1868 1885-1889 1893-1897 1913-1921 1933-1953 1961-1969 1977-1981 1993-2001 2009-2017 2021-2025
1828-1837: Far Right 1837-1933: Right 1933-Now: Centre Left
Democratic Party
1841-1841 1849-1853
Centre
Whig Party
1861-1861 1869-1885 1889-1893 1897-1913 1921-1933 1953-1961 1969-1977 1981-1993 2001-2009 2017-2021 2025-Now
1854-1960: Centre Left 1960-2021: Centre Right 2021-Now: Right
Republican Party
1861-1868
Centre Left
National Union Party
Uruguay
1834-1835 1838-1852 1853-1860 1865-1959 1967-1976 1985-1990 1995-2005
Right
Colorado Party
1835-1838 1852-1853 1860-1865 1959-1967 1976-1981 1990-1995 2020-2025
Centre Right
National Party
1985-1985
Centre Right
Civic Union
2005-2020 2025-Now
Centre Left
Broad Front
Uzbekistan
1990-1991
Far Left
Communist Party of Uzbekistan
1991-2006
Centre Left
People's Democratic Party of Uzbekistan
2006-2016 2016-Now
Centre Right
Uzbekistan Liberal Democratic Party
2016-2016
Right
Milliy Tiklanish
Vanuatu
1980-1991 1998-1999 2001-2004 2008-2009 2009-2010 2014-2015 2020-2022
Centre Left
Vanua'aku Pati
1991-1998 2004-2004 2009-2009 2011-2011 2022-2023
Centre Right
Union of Moderate Parties
1999-2001
Centre Left
Melanesian Progressive Party
2004-2008
Centre Left
National United Party
2010-2011 2011-2011 2011-2013 2015-2016 2023-2023
Centre Left
People's Progressive Party
2013-2014
Centre Left
Green Confederation
2016-2020 2023-2025
Centre Right
Reunification Movement for Change
2025-Now
Centre
Leaders Party of Vanuatu
State of Venezuela & United States of Venezuela
1830-1851 1890-1892
Centre Right
Conservative Party
1851-1858 1859-1861 1868-1869 1870-1887 1888-1890 1892-1892 1898-1899
Centre
Great Liberal Party of Venezuela
United States of Venezuela
1941-1945
Centre Right
Venezuelan Democratic Party
United States of Venezuela & Republic of Venezuela
1945-1948 1959-1969 1974-1979 1989-1994
Centre Left
Democratic Action
Republic of Venezuela
1969-1974 1979-1984
Centre
Copei
1994-1999
Centre
National Convergence
Venezuela
1999-2007
Far Left
Fifth Republic Movement
2007-Now
Left
United Socialist Party of Venezuela
State of Vietnam
1950-1950
Centre Right
Constitutional Party
1952-1953
Centre
Việt Nam Quốc Dân Đảng
Democratic Republic of Vietnam & Vietnam
1945-Now
Far Left
Worker's Party of Vietnam / Communist Party of Vietnam
State of Vietnam & Republic of Vietnam
1954-1963
Centre
Personalist Labor Revolutionary Party
Republic of Vietnam
1964-1965
Centre Left
Vietnamese Democratic Socialist Party
1967-1975
Big Tent
National Social Democratic Front
Provisional Revolutionary Government of the Republic of South Vietnam
1969-1976
Far Left
National Liberation Front of South Vietnam
Western Sahara
1976-Now
Left
POLISARIO Front
Yemen Arab Republic & Yemen
1982-2015 2015-Now
Big Tent
General People's Congress
People's Democratic Republic of Yemen
1967-1978
1967-1969: Left 1969-1978: Far Left
National Liberation Front
People's Democratic Republic of Yemen & Democratic Republic of Yemen
1978-1990 1994-1994
1978-1990: Far Left 1990-Now: Left
Yemeni Socialist Party
Yemen
2015-Now
Right
Ansar Allah
Zambia
1964-1991
Left
United National Independence Party
1991-2011
Centre
Movement for Multi-Party Democracy
2011-2021
Centre Left
Patriotic Front
2021-Now
Centre Right
United Party for National Development
Rhodesia
1965-1979
Far Right
Rhodesian Front
Zimbabwe-Rhodesia
1979-1980
Centre Left
United African National Council
Zimbabwe
1980-1987
Left
Zimbabwe African National Union
1987-Now
Big Tent
Zimbabwe African National Union – Patriotic Front
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