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Also see Category:Political parties in the Isle of Man and Category:Political parties in Jersey.

v t e Political parties in the United Kingdom
Legislatures of the United Kingdom
House of Commons (650)	Conservative (349) Labour (197, including Labour Co-operative*) SNP (43) Liberal Democrats (15) DUP (8) Sinn Féin^† (7) Plaid Cymru (3) SDLP (2) Alba (2) Alliance (1) Green (E&W) (1) Independents (18) Speaker (1)
House of Lords (785)	Conservative (272) Crossbenchers (183) Labour (173) Liberal Democrats (80) Democratic Unionist (6) Ulster Unionist (2) Green (E&W) (2) Plaid Cymru (1) Lord Speaker (1) Non-affiliated (37) Independents (2) Lords Spiritual (26)
Scottish Parliament (129)	Scottish National Party (64) Scottish Conservatives (31) Scottish Labour (22) Scottish Greens (7) Scottish Liberal Democrats (4) Presiding Officer (1)
Senedd (60)	Welsh Labour (30) Welsh Conservatives (16) Plaid Cymru (12) Welsh Liberal Democrats (1) Independent (1)
Northern Ireland Assembly (90)	Sinn Féin (27) DUP (25) Alliance (17) Ulster Unionist (9) SDLP (8) Independent Unionists (2) Traditional Unionist Voice (1) People Before Profit (1)
London Assembly (25)	London Labour (11) London Conservatives (9) London Greens (3) London Liberal Democrats (2)
Other national and regional parties	Abolish the Welsh Assembly Animal Welfare Aontú Ashfield Independents Aspire Christian Peoples Alliance Communist Party of Britain English Democrats Green (NI) Gwlad Heavy Woollen District Independents Independent Community and Health Concern Independent Green Voice Left Unity Liberal Lincolnshire Independents Mebyon Kernow Northern Independence Party Official Monster Raving Loony Propel Reform UK Scottish Family Social Democratic Trade Unionist and Socialist Coalition UKIP Women's Equality Yorkshire
*Co-operative Party candidates stand jointly with the Labour Party. ^†Sinn Féin have elected members and offices at Westminster, but as abstentionists do not take their seats.
Portal:Politics List of political parties by representation Politics of the United Kingdom