elections in Northern Ireland

|+{{Image frame|content={{Graph:Chart

| width=450

| height=230

| float= Middle

| xAxisTitle=

| yAxisTitle= Seats

| xAxisAngle = -40

| legend=Party

| interpolate = no

| showSymbols = 2

| xType = date

| y1Title=DUP

| y2Title=Sinn Fein

| y3Title=UUP

| y4Title=SDLP

| y5Title=APNI

| y6Title=UKUP

| y7Title=UPUP

| y8Title=UUUP

| y9Title=VUPP

| y10Title=RLP

| y11Title=PUP

| y12Title=Unity

| y13Title=NP

| y14Title=Lab

| y15Title=Ind U

| y16Title=Ind N

| y17Title=Ind Lab

| yAxisMax = 13

| yAxisMin = 1

| linewidths = 3,3,3,3,3,3

| type=line

| xGrid =yes

| yGrid =yes

| x=1922 ,1923 ,1924 ,1929 ,1931 ,1935 ,1945 ,1950 ,1951 ,1955 ,1959 ,1964 ,1966 ,1970 ,1974 ,1975 ,1979 ,1983 ,1987 ,1992 ,1997 ,2001 ,2005 ,2010 ,2015 ,2017 ,2019 ,

| y1= ,,,,,,,,,,,,,0 ,1 ,1 ,3 ,3 ,3 ,3 ,2 ,5 ,9 ,8 ,8 ,10 ,8 ,

| y2= ,,,,,,,,0 ,2 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,1 ,1 ,0 ,2 ,4 ,5 ,5 ,4 ,7 ,7 ,

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}}|align=center|caption=Results over time(Northern Irish seats for parliament)|max-width=}}

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|{{dts|format=dmy|1921-06-23}}

|James Lonsdale

| {{Party name with colour|Ulster Unionist Party}}

|Henry Armstrong

| {{Party name with colour|Ulster Unionist Party}}

|Death

|{{dts|format=dmy|1921-06-23}}

|Edward Carson

| {{Party name with colour|Ulster Unionist Party}}

|Thomas McConnell

| {{Party name with colour|Ulster Unionist Party}}

|Appointed Lord of Appeal in Ordinary

|{{dts|format=dmy|1921-06-23}}

|Thomas Watters Brown

| {{Party name with colour|Ulster Unionist Party}}

|Thomas Watters Brown

| {{Party name with colour|Ulster Unionist Party}}

|Appointed Solicitor-General for Ireland

|{{dts|format=dmy|1921-07-02}}

|James Craig

| {{Party name with colour|Ulster Unionist Party}}

|Robert Sharman-Crawford

| {{Party name with colour|Ulster Unionist Party}}

|Elected Prime Minister of Northern Ireland

|{{dts|format=dmy|1921-07-05}}

|Daniel Martin Wilson

| {{Party name with colour|Ulster Unionist Party}}

|Thomas Browne Wallace

| {{Party name with colour|Ulster Unionist Party}}

|Appointed Recorder of Belfast

|{{dts|format=dmy|1921-08-29}}

|Denis Henry

| {{Party name with colour|Ulster Unionist Party}}

|Robert Chichester

| {{Party name with colour|Ulster Unionist Party}}

|Appointed Lord Chief Justice of Northern Ireland

|{{dts|format=dmy|1922-01-18}}

|Robert Chichester

| {{Party name with colour|Ulster Unionist Party}}

|William Pain

| {{Party name with colour|Ulster Unionist Party}}

|Death

|{{dts|format=dmy|1922-02-17}}

|Thomas Browne Wallace

| {{Party name with colour|Ulster Unionist Party}}

|Hugh Hayes

| {{Party name with colour|Ulster Unionist Party}}

|Appointed Chief Clerk to the High Court of Northern Ireland

|{{dts|format=dmy|1922-02-21}}

|Thomas Watters Brown

| {{Party name with colour|Ulster Unionist Party}}

|Sir Henry Wilson, Bt

| {{Party name with colour|Ulster Unionist Party}}

|Appointed to the High Court of Northern Ireland

|{{dts|format=dmy|1922-06-04}}

|Hugh T. Barrie

| {{Party name with colour|Ulster Unionist Party}}

|Malcolm Macnaghten

| {{Party name with colour|Ulster Unionist Party}}

|Death

|{{dts|format=dmy|1922-07-21}}

|Sir Henry Wilson, Bt

| {{Party name with colour|Ulster Unionist Party}}

|John Simms

| {{Party name with colour|Ulster Unionist Party}}

|Killed by the IRA

|{{dts|format=dmy|1929-01-29}}

|Malcolm Macnaghten

| {{Party name with colour|Ulster Unionist Party}}

|Ronald Ross

| {{Party name with colour|Ulster Unionist Party}}

|Appointment to High Court of Justice of England and Wales

|{{dts|format=dmy|1931-03-07}}

|Thomas Harbison

| {{Party name with colour|Nationalist Party (Northern Ireland)}}

|Cahir Healy

| {{Party name with colour|Nationalist Party (Northern Ireland)}}

|Death

|{{dts|format=dmy|1934-06-27}}

|Joseph Devlin

| {{Party name with colour|Nationalist Party (Northern Ireland)}}

|Joe Stewart

| {{Party name with colour|Nationalist Party (Northern Ireland)}}

|Death

|{{dts|format=dmy|1939-05-10}}

|David Reid

| {{Party name with colour|Ulster Unionist Party}}

|James Little

| {{Party name with colour|Ulster Unionist Party}}

|Death

|{{dts|format=dmy|1940-02-08}}

|Herbert Dixon

| {{Party name with colour|Ulster Unionist Party}}

|Henry Harland

| {{Party name with colour|Ulster Unionist Party}}

|Elevation to the Peerage

|{{dts|format=dmy|1940-11-02}}

|Thomas Sinclair

| {{Party name with colour|Ulster Unionist Party}}

|Douglas Savory

| {{Party name with colour|Ulster Unionist Party}}

|Resignation

|Belfast West

|{{dts|format=dmy|1943-02-09}}

|Alexander Browne

| {{Party name with colour|Ulster Unionist Party}}

|Jack Beattie

| {{Party name with colour|Northern Ireland Labour Party}}

|Death

|{{dts|format=dmy|1943-02-11}}

|Sir Joseph McConnell, Bt

| {{Party name with colour|Ulster Unionist Party}}

|John Dermot Campbell

| {{Party name with colour|Ulster Unionist Party}}

|Death

|Down

|{{dts|format=dmy|1946-06-02}}

|James Little

| {{Party name with colour|Independent Unionist}}

|C. H. Mullan

| {{Party name with colour|Ulster Unionist Party}}

|Death

|{{dts|format=dmy|1948-03-05}}

|Sir William Allen

| {{Party name with colour|Ulster Unionist Party}}

|James Harden

| {{Party name with colour|Ulster Unionist Party}}

|Death by road accident

|{{dts|format=dmy|1950-11-29}}

|J. G. MacManaway

| {{Party name with colour|Ulster Unionist Party}}

|Thomas Teevan

| {{Party name with colour|Ulster Unionist Party}}

|Disqualified under the House of Commons (Clergy Disqualification) Act 1801

|{{dts|format=dmy|1951-05-19}}

|Ronald Ross

| {{Party name with colour|Ulster Unionist Party}}

|William Wellwood

| {{Party name with colour|Ulster Unionist Party}}

|Appointment as Northern Ireland Government Agent in London

|{{dts|format=dmy|1952-10-27}}

|Sir Hugh O'Neill

| {{Party name with colour|Ulster Unionist Party}}

|Phelim O'Neill

| {{Party name with colour|Ulster Unionist Party}}

|Resignation

|{{dts|format=dmy|1952-11-04}}

|Conolly Gage

| {{Party name with colour|Ulster Unionist Party}}

|David Campbell

| {{Party name with colour|Ulster Unionist Party}}

|Resignation

|{{dts|format=dmy|1953-04-15}}

|Walter Smiles

| {{Party name with colour|Ulster Unionist Party}}

|Patricia Ford

| {{Party name with colour|Ulster Unionist Party}}

|Died in MV Princess Victoria ferry disaster

|{{dts|format=dmy|1954-11-20}}

|James Harden

| {{Party name with colour|Ulster Unionist Party}}

|C. W. Armstrong

| {{Party name with colour|Ulster Unionist Party}}

|Resignation

|{{dts|format=dmy|1955-08-11}}

|Tom Mitchell

| {{Party name with colour|Sinn Féin}}

|Tom Mitchell

| {{Party name with colour|Sinn Féin}}

|Disqualification

|Mid Ulster

|{{dts|format=dmy|1956-05-08}}

|Charles Beattie

| {{Party name with colour|Ulster Unionist Party}}

|George Forrest

| {{Party name with colour|Independent Unionist}}

|Disqualification

|{{dts|format=dmy|1959-03-19}}

|Alan McKibbin

| {{Party name with colour|Ulster Unionist Party}}

|Stanley McMaster

| {{Party name with colour|Ulster Unionist Party}}

|Death

|{{dts|format=dmy|1963-10-22}}

|Sir David Campbell

| {{Party name with colour|Ulster Unionist Party}}

|Rafton Pounder

| {{Party name with colour|Ulster Unionist Party}}

|Death

|Mid Ulster

|{{dts|format=dmy|1969-04-17}}

|George Forrest

| {{Party name with colour|Ulster Unionist Party}}

|Bernadette Devlin

| {{Party name with colour|Unity (Northern Ireland)}}

|Death

|Fermanagh and South Tyrone

|{{dts|format=dmy|1981-04-09}}

|Frank Maguire

| {{Party name with colour|Independent Nationalist|shortname=Ind. Nationalist}}

|Bobby Sands

| {{Party name with colour|Anti H-Block}}

|Death

|{{dts|format=dmy|1981-08-20}}

|Bobby Sands

| {{Party name with colour|Anti H-Block}}

|Owen Carron

| {{Party name with colour|Anti H-Block}}

|Death from hunger strike

|{{dts|format=dmy|1982-03-04}}

|Robert Bradford

| {{Party name with colour|Ulster Unionist Party}}

|Martin Smyth

| {{Party name with colour|Ulster Unionist Party}}

|Killed by the IRA

|{{dts|format=dmy|1986-01-23}}

|Ian Paisley

| {{Party name with colour|Democratic Unionist Party}}

|Ian Paisley

| {{Party name with colour|Democratic Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Roy Beggs

| {{Party name with colour|Ulster Unionist Party}}

|Roy Beggs

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Clifford Forsythe

| {{Party name with colour|Ulster Unionist Party}}

|Clifford Forsythe

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Peter Robinson

| {{Party name with colour|Democratic Unionist Party}}

|Peter Robinson

| {{Party name with colour|Democratic Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Cecil Walker

| {{Party name with colour|Ulster Unionist Party}}

|Cecil Walker

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Martin Smyth

| {{Party name with colour|Ulster Unionist Party}}

|Martin Smyth

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|James Kilfedder

| {{Party name with colour|Ulster Popular Unionist Party}}

|James Kilfedder

| {{Party name with colour|Ulster Popular Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Enoch Powell

| {{Party name with colour|Ulster Unionist Party}}

|Enoch Powell

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Ken Maginnis

| {{Party name with colour|Ulster Unionist Party}}

|Ken Maginnis

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|James Molyneaux

| {{Party name with colour|Ulster Unionist Party}}

|James Molyneaux

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|William Ross

| {{Party name with colour|Ulster Unionist Party}}

|William Ross

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|William McCrea

| {{Party name with colour|Democratic Unionist Party}}

|William McCrea

| {{Party name with colour|Democratic Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|John Taylor

| {{Party name with colour|Ulster Unionist Party}}

|John Taylor

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|Newry and Armagh

|{{dts|format=dmy|1986-01-23}}

|James Nicholson

| {{Party name with colour|Ulster Unionist Party}}

|Seamus Mallon

| {{Party name with colour|Social Democratic and Labour Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1986-01-23}}

|Harold McCusker

| {{Party name with colour|Ulster Unionist Party}}

|Harold McCusker

| {{Party name with colour|Ulster Unionist Party}}

|Resignation in protest at Anglo-Irish Agreement

|{{dts|format=dmy|1990-05-17}}

|Harold McCusker

| {{Party name with colour|Ulster Unionist Party}}

|David Trimble

| {{Party name with colour|Ulster Unionist Party}}

|Death

|North Down

|{{dts|format=dmy|1995-06-15}}

|Sir James Kilfedder

| {{Party name with colour|Ulster Popular Unionist Party}}

|Robert McCartney

| {{Party name with colour|UK Unionist Party}}

|Death

|South Antrim

|{{dts|format=dmy|2000-09-21}}

|Clifford Forsythe

| {{Party name with colour|Ulster Unionist Party}}

|William McCrea

| {{Party name with colour|Democratic Unionist Party}}

|Death

|{{dts|format=dmy|2011-06-09}}

|Gerry Adams

| {{Party name with colour|Sinn Féin}}

|Paul Maskey

| {{Party name with colour|Sinn Féin}}

|Resignation to contest the Louth constituency in the Irish general election

|{{dts|format=dmy|2013-03-07}}

|Martin McGuinness

| {{Party name with colour|Sinn Féin}}

|Francie Molloy

| {{Party name with colour|Sinn Féin}}

|Resignation to end dual mandate as Member of Parliament and Member of the Northern Ireland Assembly

|{{dts|format=dmy|2018-05-03}}

|Barry McElduff

| {{Party name with colour|Sinn Féin}}

|Órfhlaith Begley

| {{Party name with colour|Sinn Féin}}

|Resignation

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