By Elections to UK Parliament
held in Northern Ireland
Gains are indicated by yellow shading.
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| ElectionsIreland.org > Results > General Elections > Northern Ireland > By Elections | |||||||||||||||
By Elections to UK Parliament
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Westminster By Elections 1922-2000 |
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Constituency | Date | |
Party | Outgoing | |
Party | Winner | |
Vote | |||||
Since 1924 General Election - 1 By Election in Northern Ireland |
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| Londonderry | 29 January 1929 |  | Sir Malcolm Mcnaghten | | Ronald Ross | unopposed | |||||||||
Since 1929 General Election - 1 By Election in Northern Ireland |
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| Fermanagh and Tyrone | 7 March 1931 |  | Thomas Harbison* | | Cahir Healy | unopposed | |||||||||
Since 1931 General Election - 1 By Election in Northern Ireland |
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| Fermanagh and Tyrone | 27 June 1934 | | Joseph Devlin* | | Joseph Stewart¶ | 61.41% | |||||||||
Since 1935 General Election - 5 By Election in Northern Ireland |
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| Down | 10 May 1939 | | David Reid* |  | Rev James Little | unopposed | |||||||||
| Belfast East | 8 February 1940 | | Herbert Dixon | | Henry Harland | unopposed | |||||||||
| Queen's University Belfast | 2 November 1940 | | Thomas Sinclair | | Prof Douglas Savory | unopposed | |||||||||
| Belfast West | 9 February 1943 | | Alexander Browne* |  | John Beattie | 46.19% | |||||||||
| Antrim | 11 February 1943 | | Joseph McConnell* | | John Campbell | 69.40% | |||||||||
Since 1950 General Election - 2 By Elections in Northern Ireland |
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| Belfast West | 29 November 1950 | | James MacManaway | | Thomas Teevan2¶ | 50.73% | |||||||||
| Londonderry | 29 November 1950 | | Ronald Ross | | William Wellwood | unopposed | |||||||||
Since 1951 General Election - 4 By Elections in Northern Ireland |
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| Antrim North | 27 October 1952 | | Robert O'Neill | | Phelim O'Neill | unopposed | |||||||||
| Belfast South | 4 November 1952 | | Hugh Gage | | Sir David Campbell | 75.08% | |||||||||
| Down North | 15 April 1953 | | Sir Walter Smiles* | | Patricia Ford¶ | unopposed | |||||||||
| Armagh | 20 November 1954 | | James Harden | | Christopher Armstrong | unopposed | |||||||||
Since 1955 General Election - 3 By Elections in Northern Ireland |
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| Ulster Mid | 11 August 1955 |  | Thomas Mitchell | | Thomas Mitchell¶ | 50.67% | |||||||||
| Ulster Mid | 8 May 1956 | | Charles Beattie | | George Forrest | 48.36% | |||||||||
| Belfast East | 19 March 1959 | | Alan McKibbin* | | Stanley McMaster | 57.78% | |||||||||
Since 1966 General Election - 1 By Election in Northern Ireland |
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| Ulster Mid | 17 April 1969 | | George Forrest* |  | Bernadette Devlin | 50.67% | |||||||||
Since 1979 General Election - 3 By Elections in Northern Ireland |
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| Fermanagh & Tyrone South | 9 April 1981 |  | M Frank Maguire* |  | Robert Sands¶ | ||||||||||
| Fermanagh & Tyrone South | 20 August 1981 | | Robert Sands* | | O Carron | ||||||||||
| Belfast South | 4 March 1982 |  | Rev R J Bradford* | | Rev Martin Smyth | ||||||||||
Since 1983 General Election - 15 By Elections in Northern Ireland |
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| Antrim East | 23 January 1986 | | Roy Beggs | | Roy Beggs | ||||||||||
| Antrim North | 23 January 1986 |  | Rev Ian Paisley | | Rev Ian Paisley | ||||||||||
| Antrim South | 23 January 1986 | | Clifford Forsythe | | Clifford Forsythe | ||||||||||
| Belfast East | 23 January 1986 | | Peter Robinson | | Peter Robinson | ||||||||||
| Belfast North | 23 January 1986 | | Cecil Walker | | Cecil Walker | ||||||||||
| Belfast South | 23 January 1986 | | Rev Martin Smyth | | Rev Martin Smyth | ||||||||||
| Down North | 23 January 1986 |  | James Kilfedder | | James Kilfedder | ||||||||||
| Down South | 23 January 1986 | | Enoch Powell | | Enoch Powell | ||||||||||
| Londonderry East | 23 January 1986 | | William Ross | | William Ross | ||||||||||
| Fermanagh & Tyrone South | 23 January 1986 | | Ken Maginnis | | Ken Maginnis | ||||||||||
| Lagan Valley | 23 January 1986 | | James Molyneaux | | James Molyneaux | ||||||||||
| Newry & Armagh | 23 January 1986 | | James Nicholson |  | Seamus Mallon | ||||||||||
| Strangford | 23 January 1986 | | John Taylor | | John Taylor | ||||||||||
| Ulster Mid | 23 January 1986 | | Rev William McCrea | | Rev William McCrea | ||||||||||
| Upper Bann | 23 January 1986 | | Harold McCusker | | Harold McCusker | ||||||||||
Since 1987 General Election - 1 By Election in Northern Ireland |
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| Upper Bann | 17 May 1990 | | Harold McCusker* | | David Trimble | 57.97 | |||||||||
Since 1992 General Election - 1 By Election in Northern Ireland |
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| Down North | 15 June 1995 | | James Kilfedder* |  | Robert McCartney | 36.97 | |||||||||
Since 1997 General Election - 1 By Election in Northern Ireland |
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| Antrim South | 21 September 2000 |  | Clifford Forsythe* | | Rev Dr William McCrea¶ | 37.95 | |||||||||
Since 2010 General Election - 2 By Election in Northern Ireland |
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| Belfast West | 6 June 2011 |  | Gerry Adams | | Paul Maskey | 70.63% | |||||||||
| Ulster Mid | 7 March 2013 | | Martin McGuinness | | Francie Molloy | 46.93% | |||||||||
*By Election caused by |
¶Not subsequently |
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Since 2017 General Election - 1 By Election in Northern Ireland |
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| Tyrone West | 3 May 2018 | | Barry McElduff | | Orfhlaith Begley | 46.66% | |||||||||
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