Leaders of political parties in the United Kingdom

This article lists the leaders of political parties in the United Kingdom to provide insight into the politics of the United Kingdom. It contains details including which party the leader belongs to, the leader's seat, the number of seats that leader's party holds, and when each leader was chosen to lead.

Leaders in the House of Commons

David Cameron Leader of the Conservative Party	Jeremy Corbyn Leader of the Labour Party

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Leader		Party	Leader's Seat	Number of Seats	Leader since
	David Cameron	Conservative Party	Witney	330	6 December 2005
	Jeremy Corbyn	Labour	Islington North	232	September 12 2015
	Nicola Sturgeon	Scottish National Party	N/A	56	14 November 2014
	Nigel Dodds	Democratic Unionist Party	Belfast North	8	7 May 2010
	Tim Farron	Liberal Democrats	Westmorland and Lonsdale	8	16 July 2015
Gerry Adams	Sinn Féin	N/A	4 (abstentionist)	13 November 1983
	Leanne Wood	Plaid Cymru	N/A	3	2001
	Alasdair McDonnell	Social Democratic and Labour Party	Belfast South	3	5 November 2011
	Mike Nesbitt	Ulster Unionist Party	N/A	2	31 March 2012
	Natalie Bennett	Green Party of England and Wales	N/A	1	Green Party of England and Wales leadership election, 2012
	Nigel Farage	UK Independence Party	N/A	1	5 November 2010

Leaders in the House of Lords

Leader		Party	Members	Leader since
	Baroness Stowell of Beeston	Conservative Party	224	15 July 2014
	Baroness Smith of Basildon	Labour	211	27 May 2015
	Lord Wallace	Liberal Democrats	101	15 October 2013

Leaders in the Scottish Parliament

Leader		Party	Leader's Seat	Number of Seats	Leader since
	Nicola Sturgeon	Scottish National Party	Glasgow Southside	64	14 November 2014
	Kezia Dugdale	Scottish Labour Party	Lothian	38	13 December 2014
	Ruth Davidson	Scottish Conservative Party	Glasgow	15	31 October 2005
	Willie Rennie	Scottish Liberal Democrats	Mid Scotland and Fife	5	May 5, 2011
	Patrick Harvie	Scottish Green Party	Glasgow	2

Leaders in the Welsh Assembly

Leader		Party	Leader's Seat	Number of Seats	Leader since
	Carwyn Jones	Welsh Labour	Bridgend	30	1 December 2009
	Andrew R. T. Davies	Welsh Conservatives	South Wales Central	14	14 July 2011
	Leanne Wood	Plaid Cymru	South Wales Central	11	16 March 2012
	Kirsty Williams	Welsh Liberal Democrats	Brecon and Radnorshire	5	8 December 2008

Leaders in the Northern Ireland Assembly

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Leader		Party	Leader's Seat	Number of Seats	Leader since
	Peter Robinson	Democratic Unionist Party	Belfast East	38	31 May 2008
Raymond McCartney	Sinn Féin	Foyle	29	2011
	Colum Eastwood	Social Democratic and Labour Party	Belfast South	14	15 November 2015
	Mike Nesbitt	Ulster Unionist Party	Strangford	13	31 March 2012
	David Ford	Alliance Party of Northern Ireland	South Antrim	8	2001
	Steven Agnew	Green Party in Northern Ireland	North Down	1	2010
	Basil McCrea	NI21	Lagan Valley	1	2013
	Jim Allister	Traditional Unionist Voice	North Antrim	1	2007

Leaders in the European Parliament

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Leader		Party	Leader's Seat	Number of Seats	Leader since
	Nigel Farage	UK Independence Party	South East England	22	1999
	Glenis Willmott	Labour Party	East Midlands	20	18 January 2009
	Ashley Fox	Conservative Party	South West England and Gibraltar	20	25 November 2014
	None	Green Party of England and Wales	N/A	3	N/A
	Ian Hudghton	Scottish National Party	Scotland	2	1998
	Catherine Bearder	Liberal Democrats	South East England	1	2015
	Jillian Evans	Plaid Cymru	Wales	1	2009
Martina Anderson	Sinn Féin	Northern Ireland	1	2014
	Diane Dodds	Democratic Unionist Party	Northern Ireland	1	2009
	Jim Nicholson	Ulster Unionist Party	Northern Ireland	1	1998