The Right Honourable Sir Jeffrey Donaldson MP
Official portrait, 2017
Leader of the Democratic Unionist Party
In office 30 June 2021 – 29 March 2024
Deputy	Paula Bradley Gavin Robinson
Preceded by	Edwin Poots
Succeeded by	Gavin Robinson (interim)
Leader of the Democratic Unionist Party in the House of Commons
In office 17 December 2019 – 29 March 2024
Leader	Arlene Foster Edwin Poots Himself
Preceded by	Nigel Dodds
Succeeded by	Gavin Robinson
Democratic Unionist Party Chief Whip in the House of Commons
In office 8 May 2015 – 17 December 2019
Leader	Nigel Dodds
Preceded by	Office established
Succeeded by	Sammy Wilson
Junior Minister at the Office of the First Minister and Deputy First Minister
In office 26 February 2008 – 1 July 2009 Serving with Gerry Kelly
Preceded by	Ian Paisley Jr
Succeeded by	Robin Newton
Member of the Northern Ireland Assembly for Lagan Valley
In office 26 November 2003 – 14 June 2010
Preceded by	Patrick Roche
Succeeded by	Paul Givan
Member of Parliament for Lagan Valley
Incumbent
Assumed office 1 May 1997
Preceded by	Sir James Molyneaux
Majority	6,499 (14.3%)
Personal details
Born	(1962-12-07) 7 December 1962 (age 62) Kilkeel, Northern Ireland
Nationality	British[1][2]
Political party	Independent (in parliament) Democratic Unionist Party (suspended)
Other political affiliations	Ulster Unionist Party (until 2003)
Spouse(s)	Eleanor Cousins ​ (m. 1987)​
Children	2
Alma mater	Castlereagh College
Military service
Allegiance	United Kingdom
Branch/service	British Army
Rank	Corporal
Unit	Ulster Defence Regiment

Sir Jeffrey Mark Donaldson (born 7 December 1962) is a Northern Irish^[1] politician. He was the leader of the Democratic Unionist Party (DUP) from 2021 to 2024 and the leader in the UK House of Commons from 2019 to 2024. He has been the Member of Parliament (MP) for Lagan Valley since 1997. He is Northern Ireland's longest-serving current MP.

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