United Kingdom by-election records

UK by-election records is an annotated list of notable records from UK Parliamentary by-elections. A by-election occurs when a Member of Parliament resigns, dies, or is disqualified or expelled, and an election is held to fill the vacant seat. A constituency is the seat or division that member represented.

Prior to 1945, electoral competition in the United Kingdom exhibited features that make meaningful comparisons with modern results difficult.

Among the most significant were:

Since 1945, the evolution of a stable three-party system has tended to negate each of the above features so that, broadly speaking, elections are more comparable.

In Northern Ireland, as ever, the pattern of party competition is completely different from that on the mainland and comparisons remain problematic.

Hence, unless otherwise stated records are based on results since the 1945 General Election, and earlier exceptional results are listed separately.

Glossary

For comparison purposes the following definitions have been adopted.

Numerical records

For more information about what is meant by the term "swing", see Swing (politics)

Largest swings

Election Swing From To
Bermondsey by-election, 1983 44.2 Labour Liberal
Clacton by-election, 2014 44.11 Conservative UKIP
Hamilton by-election, 1967 37.9 Labour SNP
Bradford West by-election, 2012 36.6 Labour Respect
Christchurch by-election, 1993 35.4 Conservative Liberal Democrat
Glasgow Govan by-election, 1988 33.1 Labour SNP
Liverpool Wavertree by-election, 1935 30.0 Conservative Labour
Fulham East by-election, 1933 29.2 Conservative Labour
Dudley West by-election, 1994 29.2 Conservative Labour
Brent East by-election, 2003 28.9 Labour Liberal Democrat
Newbury by-election, 1993 28.4 Conservative Liberal Democrat
Rochester and Strood by-election, 2014 28.31 Conservative UKIP
Birmingham Hodge Hill by-election, 2004 26.72 Labour Liberal Democrat
Dagenham by-election, 1994 23.12 Conservative Labour
South East Staffordshire by-election, 1996 22.1 Conservative Labour
Barking by-election, 1994 22.02 Conservative Labour
Glasgow East by-election, 2008 22.6 Labour SNP
Walsall North by-election, 1976 22.6 Labour Conservative
Dudley by-election, 1968 21.2 Labour Conservative
Ashfield by-election, 1977 20.9 Labour Conservative

1 By-elections where the seat was held by the incumbent MP.
2 By-elections where the seat was held by the incumbent party.

Largest fall in percentage share of vote

A party's share of the vote at a general election is not always matched at subsequent by-elections, but given the five-year maximum term of a Parliament, reductions of 20% or more are unusual. Those of 25% or more are listed below:

Election Reduction in
% share		 Party Result
Merthyr by-election, 1934 59.6 Ind. Labour Party Labour gain
East Antrim by-election, 1919 52.8 Irish Unionist Independent Unionist gain
Glasgow Camlachie by-election, 1948 51.3 Ind. Labour Party Conservative gain
Southwark South East by-election, 1921 49.7 Liberal Labour gain
Westminster St George's by-election, 1921 47.7 Conservative Anti-Waste League gain
Liverpool Wavertree by-election, 1935 46.7 Conservative Labour gain
Bermondsey by-election, 1983 37.5 Labour Liberal gain
Birmingham Ladywood by-election, 1969 33.4 Labour Liberal gain
Christchurch by-election, 1993 32.5 Conservative Liberal Democrat gain
Glasgow Bridgeton by-election, 1946 32.1 Ind. Labour Party Ind. Labour Party hold
Rochdale by-election, 1958 31.7 Conservative Labour gain
Dudley West by-election, 1994 30.2 Conservative Labour gain
North Down by-election, 1995 29.9 Conservative UK Unionist gain from Popular Unionist
Hamilton by-election, 1967 29.7 Labour SNP gain
Birmingham Hodge Hill by-election, 2004 29.6 Labour Labour hold
Paisley by-election, 1961 29.5 Conservative Labour hold
Brent East by-election, 2003 29.4 Labour Liberal Democrat gain
Newbury by-election, 1993 29.0 Conservative Liberal Democrat gain
Caerphilly by-election, 1968 28.7 Labour Labour hold
Hamilton South by-election, 1999 28.7 Labour Labour hold
Clacton by-election, 2014 28.4 Conservative UKIP gain
West Lothian by-election, 1962 28.3 Conservative Labour hold
Torrington by-election, 1958 27.7 Conservative Liberal gain
Oldham West by-election, 1968 27.6 Labour Conservative gain
Norwich North by-election, 2009 26.7 Labour Conservative gain
Fulham East by-election, 1933 26.6 Conservative Labour gain
Glasgow Gorbals by-election, 1948 25.5 Labour Labour hold
West Derbyshire by-election, 1962 25.2 Conservative Conservative hold

Worst results for other parties:

Election Reduction in
% share		 Party Result
Glasgow North East by-election, 2009 14.0 Socialist Labour Labour gain from Speaker
Belfast South by-election, 1982 22.4 UUP Ulster Unionist hold
Heywood and Middleton by-election, 2014 17.6 Liberal Democrat Labour hold
Kinross and West Perthshire by-election, 1963 7.7 SNP Conservative hold
Newry and Armagh by-election, 1986 7.7 Sinn Féin SDLP gain from Ulster Unionist
Swansea East by-election, 1963 5.3 Plaid Cymru Labour hold
Romsey by-election, 2000 1.2 UKIP Liberal Democrat gain from Conservative

Largest increase in percentage share of vote

ElectionIncrease in Share Party Result
East Londonderry by-election, 198656.0 UUP UUP hold
Bradford West by-election, 201252.8 Respect Respect gain
Bermondsey by-election, 198350.9 Liberal Liberal gain
South Antrim by-election, 198648.4 UUP UUP hold
East Antrim by-election, 198647.5 UUP UUP hold
North Antrim by-election, 198643.2 DUP DUP hold
Christchurch by-election, 199338.6 Liberal Democrat Liberal Democrat gain
Glasgow Govan by-election, 198838.4 SNP SNP gain
Liverpool Edge Hill by-election, 197936.8 Liberal Liberal gain
Heywood and Middleton by-election, 201436.1 UKIP Labour hold
Belfast East by-election, 198635.7 DUP DUP hold
Belfast North by-election, 198635.3 UUP UUP hold
Fulham East by-election, 193331.8 Labour Labour gain
Glasgow Govan by-election, 197331.6 SNP SNP gain
Lagan Valley by-election, 198631.5 UUP UUP hold
Southwark South East by-election, 192129.6 Labour Labour gain
Croydon North West by-election, 198129.5 Liberal Liberal gain
Caerphilly by-election, 196829.3 Plaid Cymru Labour hold
Brent East by-election, 200328.5 Liberal Democrat Liberal Democrat gain
Dudley West by-election, 199428.0 Labour Labour gain
Greenwich by-election, 198727.9 Social Democratic Social Democratic gain
Merthyr Tydfil by-election, 197227.4 Plaid Cymru Labour gain
Carmarthen by-election, 196627.4 Plaid Cymru Plaid Cymru gain
Ribble Valley by-election, 199127.1 Liberal Democrat Liberal Democrat gain
Monklands East by-election, 199426.9 SNP Labour hold
Birmingham Hodge Hill by-election, 200426.1 Liberal Democrat Labour hold
Glasgow East by-election, 200826.1 SNP SNP gain
Liverpool Wavertree by-election, 193125.0 Conservative Conservative hold

Largest winning share of the vote

Candidate Party Election Votes % Share
Ernest Everard Gates Conservative Middleton and Prestwich by-election, 1940 32,036 98.7
Ian Paisley DUP North Antrim by-election, 1986 33,937 97.4
John Craik-Henderson Conservative Leeds North East by-election, 1940 23,882 97.1
James Milner Labour Leeds South East by-election, 1929 11,804 95.8
John Mackintosh McLeod Conservative Glasgow Central by-election, 1915 5,341 95.3
John Taylor UUP Strangford by-election, 1986 32,627 94.2
Clifford Forsythe UUP South Antrim by-election, 1986 30,087 94.1

Lowest winning share of the vote

Winning shares of the vote below 35%, since 1918:

Candidate Party Election Votes % Share
Henry Strauss Conservative Combined English Universities by-election, 1946 5,483 30.0
Mike Thornton Liberal Democrat Eastleigh by-election, 2013 13,342 32.1
Edward Taswell Campbell Conservative Bromley by-election, 1930 12,782 32.4
George Machin Labour Dundee East by-election, 1973 14,411 32.7
Roy Jenkins Social Democratic Glasgow Hillhead by-election, 1982 10,106 33.4
Guy Barnett Labour South Dorset by-election, 1962 13,783 33.5
James Carmichael Ind. Labour Party Glasgow Bridgeton by-election, 1946 6,351 34.3
Leah Manning Labour Islington East by-election, 1931 10,591 34.7
Kenneth Lindsay National Labour Kilmarnock by-election, 1933 12,577 34.8
Parmjit Singh Gill Liberal Democrat Leicester South by-election, 2004 10,274 34.9

The Stockport by-election, 1920, was held to elect two MPs. The winners' shares of the total vote were 25.6% and 25.1%. However, as each voter could cast two votes, the situation is not readily comparable to other by-elections in this period.

At the Sheffield Attercliffe by-election, 1909, the winning candidate took only 27.5% of the vote.

Lowest share of the vote

Major parties

Major parties winning 2% or less share of votes cast in a by-election, since 1918:

Candidate Party Election Votes % Share
Geoff Juby Liberal Democrat Rochester and Strood by-election, 2014 349 0.9
Roger Goodfellow Liberal Glasgow Camlachie by-election, 1948 312 1.2
John Scott Duckers Liberal Westminster Abbey by-election, 1924 291 1.3
Andrew Graham Liberal Democrat Clacton by-election, 2014 483 1.3
Hugh Annand Liberal Democrat South Shields by-election, 2013 352 1.4
Robert McCreadie Social and Liberal Democrats Glasgow Central by-election, 1989 411 1.6
Patrick Davies Labour Winchester by-election, 1997 944 1.7
Ian Miller Liberal Glasgow Pollok by-election, 1967 735 1.9
Steve Billcliffe Labour Newbury by-election, 1993 1,151 2.0

The worst Conservative performance was in the North Down by-election, 1995, where they took 2.1% of the votes cast.

Candidates winning fewer than ten votes

Since 1918:1
Votes Name Affiliation Label
5 Bill Boaks Public Safety Democratic Monarchist White Resident Glasgow Hillhead by-election, 1982[1]
5 Kailash Trivedi Independent Janata Party Kensington by-election, 1988[1]
7 John Connell Peace - stop ITN manipulation Chesterfield by-election, 1984
8 Esmond Bevan Systems Designer2 Bermondsey by-election, 1983[1]
8 Tony Farnon Independent Haltemprice and Howden by-election, 2008
8 Norman Scarth Independent Haltemprice and Howden by-election, 2008
1 F. R. Lees, a Temperance Chartist, won no votes in the Ripon by-election, 1860, as his supporters mistakenly believed that he had withdrawn.
2 Bevan made a mistake when filling in his nomination paper and put his occupation ("Systems Designer") in the space labelled description, which was printed on the ballot paper then. He was an independent candidate.

Smallest majorities

All majorities of less than 1,000 since the Second World War. Bold entries indicate a new record.

Votes Election Notes
57 Berwick-upon-Tweed by-election, 1973 Gained by the Liberal Party
62Walthamstow West by-election, 1967Gained by the Conservatives
100West Derbyshire by-election, 1986 Held by the Conservatives
205Leyton by-election, 1965 Gained by the Conservatives
219Torrington by-election, 1958 Gained by the Liberals
220Central Norfolk by-election, 1962Held by the Conservatives
264Ashfield by-election, 1977Gained by the Conservatives
289Birmingham Northfield by-election, 1982Gained by Labour
293Dunbartonshire West by-election, 1950Held by Labour
359Combined English Universities by-election, 1946Gained by the Conservatives
365Glasgow East by-election, 2008Gained by the SNP
395Glasgow Camlachie by-election, 1948Gained by the Conservatives
430Southend East by-election, 1980Held by the Conservatives
437Brighouse and Spenborough by-election, 1950Held by Labour
452Heywood and Radcliffe by-election, 1946Held by Labour
460Birmingham Hodge Hill by-election, 2004Held by Labour
478Swindon by-election, 1969Gained by the Conservatives
517Paddington North by-election, 1969Held by Labour
520Grimsby by-election, 1977Held by Labour
552Penrith and The Border by-election, 1983Held by the Conservatives
556Hamilton South by-election, 1999Held by Labour
557Manchester Gorton by-election, 1967Held by Labour
559Brecon and Radnor by-election, 1985Gained by the Liberal Party
571Glasgow Govan by-election, 1973Gained by the SNP
617Heywood and Middleton by-election, 2014Held by Labour
633Bromley and Chislehurst by-election, 2006Held by the Conservatives
641Bolton East by-election, 1960Held by the Conservatives
657Taunton by-election, 1956Held by the Conservatives
666Brighouse and Spenborough by-election, 1960Gained by the Conservatives
704South Dorset by-election, 1962Gained by Labour
705Falkirk West by-election, 2000Held by Labour
740Bassetlaw by-election, 1968Held by Labour
799Newcastle-under-Lyme by-election, 1986Held by Labour
806Mid Ulster by-election, 1955Held by Sinn Féin
815Kensington by-election, 1988Held by the Conservatives
822South Antrim by-election, 2000Gained by the DUP
865South Norfolk by-election, 1955Held by the Conservatives
913Belfast West by-election, 1950Held by the Unionists
917South Northamptonshire by-election, 1962Held by the Conservatives
946Ripon by-election, 1973Gained by the Liberal Party
971Dumfriesshire by-election, 1963Held by the Conservatives
973Blackpool North by-election, 1962Held by the Conservatives

Still smaller majorities have been recorded since 1918. The majority in the Penrith and Cockermouth by-election, 1921, was only 31 votes, and in the Westminster Abbey by-election, 1924 was 43 votes.[1] At the Cirencester by-election, 1892 a majority of 3 for the Unionists was overturned on petition, where it was found that both candidates had an equal number of votes. A fresh by-election was called, which was won by the Liberals.

Turnout

Turnout is recorded as the percentage of valid votes from the total recorded vote.

Highest turnout

The highest turnouts since 1918.

By-election Year Turnout %
Mid Ulster by-election, 1969 1969 91.5%
Mid Ulster by-election, 1955 1955 89.7%
Ashton-under-Lyne by-election, 1928 1928 89.1%[1]
Fermanagh and South Tyrone by-election, August 1981 1981 88.6%
Mid Ulster by-election, 1956 1956 88.4%
Tiverton by-election, 1923 1923 88.1%[1]
Darlington by-election, 1926 1926 87.6%[1]
Carmarthen by-election, 1957 1957 87.4%[1]
Fermanagh and South Tyrone by-election, April 1981 1981 86.9%
Stockport by-election, 1925 1925 85.7%[1]
Brighouse and Spenborough by-election, 1950 1950 85.4%[1]

Turnout increased from general election

It is highly unusual for a by-election to attract a higher turnout in a seat than the previous general election.

By-election Turnout % Turnout %
at general election		 Increase %
Ross and Cromarty by-election, 1936 65.2 50.8 14.4
Torrington by-election, 1958 80.6 69.2 11.4
Bridgwater by-election, 1938 82.3 72.7 9.6
Oxford by-election, 1938 76.3 67.3 9.0
Carmarthen by-election, 1928 76.6 67.9 8.7
St Ives by-election, 1928 77.4 69.1 8.3
Mid Ulster by-election, 1969 91.5 83.9 7.6
East Aberdeenshire by-election, 1958 65.9 59.8 6.1
Kingston-upon-Hull Central by-election, 1926 82.8 77.1 5.7
Bosworth by-election, 1927 84.6 80.8 3.8
Leith by-election, 1927 73.9 70.5 3.4
Cardiganshire by-election, 1932 70.4 67.5 2.9
North Lanarkshire by-election, 1929 82.3 79.9 2.4
Carmarthen by-election, 1957 87.4 85.1 2.3
Paisley by-election, 1948 76.0 73.9 2.1
Rhondda West by-election, 1967 82.2 80.3 1.9
Croydon North by-election, 1948 74.8 73.2 1.6
Fermanagh and South Tyrone by-election, August 1981 88.6 87.1 1.5
Darlington by-election, 1926 87.6 86.1 1.5
Linlithgowshire by-election, 1928 81.5 80.0 1.5
Berwick-upon-Tweed by-election, 1973 75.0 73.7 1.3
South Ayrshire by-election, 1970 76.3 75.1 1.2
Mid Ulster by-election, 1955 89.7 88.6 1.1
Wigan by-election, 1948 81.4 80.4 1.0
Ashton-under-Lyne by-election, 1928 89.1 88.3 0.8
Grimsby by-election, 1977 70.2 69.4 0.8
Ipswich by-election, 1938 82.8 82.1 0.7
Glasgow Hillhead by-election, 1982 76.4 75.7 0.7
Walsall by-election, 1938 75.9 75.2 0.7
Argyll by-election, 1958 67.1 66.6 0.5
Smethwick by-election, 1926 78.6 78.2 0.4
Hamilton by-election, 1967 73.7 73.3 0.4
Macclesfield by-election, 1971 76.6 76.4 0.2

Lowest turnout

During the Second World War the electoral register was not kept up to date despite significant population movements, especially in the London area (which contains all three constituencies listed below). Consequently, only those eligible to vote in the constituency at the outbreak of war were eligible to vote in the by-elections and many voters were physically unable to as they were located elsewhere; in addition the major parties did not compete against each other. The lowest turnout in peacetime since 1918 was 18.2% at the Manchester Central by-election, 2012.[2] The lowest turnouts since 1918 have been:

Turnouts of less than 30% since 1945 (bold indicates a new post-war record)

By-election Turnout %
Manchester Central by-election, 2012 18.2%
Leeds Central by-election, 1999 19.6%
Shoreditch and Finsbury by-election, 1958 24.9%
Wigan by-election, 1999 25.0%
Tottenham by-election, 2000 25.4%
Cardiff South and Penarth by-election, 2012 25.7%
Newham South by-election, 1974 25.9%
Middlesbrough by-election, 2012 26.0%
Croydon North by-election, 2012 26.5%
West Bromwich West by-election, 2000 27.6%
Feltham and Heston by-election, 2011 28.8%
Preston by-election, 2000 29.6%
Kensington and Chelsea by-election, 1999 29.7%

Most candidates

Under current UK electoral law there is no upper or lower limit for candidature numbers, with the only required stipulation being the valid nomination of ten electors from the constituency. By-elections often attract "fringe" or novelty candidates, single-issue candidates, or independents. As with nominations in a general election, candidates must pay a £500 deposit, which is only refunded if the candidate wins 5% of the votes cast.

All by-elections with more than ten candidates are listed. Elections are listed in alphabetical order. Those that created a new record number appear in bold.

Year Number of candidates Election
2008 26 Haltemprice and Howden
1993 19 Newbury
1999 18 Kensington and Chelsea
1984 17 Chesterfield
1983 16 Bermondsey
2003 Brent East
1988 15 Kensington
1989 14 Vauxhall
1993 Christchurch
2012 Corby
2013 Eastleigh
2004 Hartlepool
1990 Mid Staffordshire
2009 13 Glasgow North East
2014 Rochester and Strood
1996 South East Staffordshire
2012 12 Croydon North
1981 Croydon North West
2003 Ealing Southall
1999 Hamilton South
2008 Henley
2012 Manchester Central
2009 Norwich North
1997 Wirral South
2006 11 Bromley and Chislehurst
1986 Hammersmith and Fulham
1978 Lambeth Central
2004 Leicester South
2014 Newark
2012 Rotherham
2007 Sedgefield
1990 Upper Bann
1997 Uxbridge
1989 Vale of Glamorgan
1981 Warrington
1977 10 Birmingham Ladywood
1990 Bradford North
1977 City of London and Westminster South
2008 Crewe and Nantwich
1994 Dudley West
1996 Hemsworth
1995 Littleborough and Saddleworth
2005 Livingston
2002 Ogmore
2010 Oldham East and Saddleworth

Fewest candidates

Year Number of candidates Election
19541 (uncontested)Armagh
1953 North Down
1952 Antrim North
1951 Londonderry
1946 Hemsworth1
1986 2 Eight of the Northern Ireland by-elections2
1981 Fermanagh and South Tyrone
1971 Widnes1
1986 3 Ryedale
*1 The most recent mainland UK example
*2 Four of the eight straight fights were between the Unionist incumbent and a "paper candidate" using the name "Peter Barry", the name of the then Irish Minister of Foreign Affairs.

Candidate records

Durable by-election candidates

Major parties

Former Labour cabinet minister Tony Benn contested no fewer than four by-elections during his career, topping the poll on each occasion: Bristol South East in 1950, 1961 and 1963, and Chesterfield in 1984. His first and last by-election victories were 33 years and 3 months apart.

Former cabinet minister and European Commissioner Roy Jenkins fought two different by-elections for the Social Democratic Party only eight months apart. He narrowly failed in the Warrington by-election, 1981 before winning the Glasgow Hillhead by-election, 1982. He had been first elected as a Labour MP almost 34 years previously in the Southwark Central by-election, 1948.

Former Speaker of the House of Commons, Betty Boothroyd finally secured election at her third by-election attempt at the West Bromwich by-election, 1973. She had previously failed in the Leicester South East by-election, 1957 and the Nelson and Colne by-election, 1968 as well as the General Elections of 1959 and 1970.

John Bickley of UKIP contested three by-elections (all in Greater Manchester) within two years - Wythenshawe and Sale East in February 2014, Heywood and Middleton in October 2014 and Oldham West and Royton in December 2015. He was defeated on each occasion, coming closest in Heywood and Middleton where he lost by less than 700 votes. Bickley also contested Heywood and Middleton at the 2015 general election, making a total of four parliamentary elections contested in less than 24 months.

Minor parties and independents

Perennial fringe candidates include such personalities as Bill Boaks, whose highest vote was at the Beaconsfield by-election, 1982 with 99 votes. Screaming Lord Sutch was for most of his career the leader of the Official Monster Raving Loony Party. His highest vote total was 1,114 at the Rotherham by-election, 1994. Lindi St Clair of the Corrective Party contested numerous by-elections without success, her highest total being 216 votes as 'Lady Whiplash' at the Eastbourne by-election, 1990.

Sutch's successor as leader of the Official Monster Raving Loony Party, Alan "Howling Laud" Hope, has contested eleven by-elections[3]

John Cartwright of the Official Monster Raving Loony Party has contested three by-elections without success, his most successful total being 188 at the Ealing Southall by-election, 2007. Under various ballot paper descriptions, David Bishop of the Church of the Militant Elvis label has stood at five by-elections, getting 99 votes at the Corby by-election, 2012, an increase over his previous high of ninety-three at Feltham and Heston by-election, 2011.

Pre-1945

Arthur Henderson was distinguished in being successful in no fewer than five by-elections in different seats, in Barnard Castle, Widnes, Newcastle upon Tyne East, Burnley, and Clay Cross.

Joseph Gibbins is the only person in modern times to gain the same seat twice in two different by-elections. He triumphed for Labour in the Liverpool West Toxteth by-election, 1924 and the Liverpool West Toxteth by-election, 1935.

William O'Brien won four by-elections, in Mallow in 1883, North East Cork in 1887 and then Cork City in 1904 and 1914. On these last two occasions, he was re-elected having resigned the seat.

Prime Minister Winston Churchill contested five by-elections in his long career:-

John Wilkes won the Aylesbury by-election, 1757, and was then elected in the Middlesex by-elections of February, March and April 1769, on each occasion being subsequently expelled from the House of Commons.

Former MPs making a comeback at a by-election

Election MP Party notes
Bradford West by-election, 20121 George Galloway Respect returns after failing to win a seat in the 2010 General Election
South Antrim by-election, 20001 William McCrea DUP returns after losing his Mid Ulster seat in the 1997 General Election.
Kensington and Chelsea by-election, 1999 Michael Portillo Conservative returns after losing his Enfield Southgate seat at the 1997 General Election.
Beckenham by-election, 1997 Jacqui Lait Conservative returns after losing her Hastings and Rye seat at the 1997 General Election.
Epping Forest by-election, 1988 Steve Norris Conservative returns after losing his Oxford East seat at the 1987 General Election.
Glasgow Govan by-election, 19881 Jim Sillars SNP He had first sat as a Labour MP (later as Scottish Labour) for South Ayrshire between 1970 and 1979.
Chesterfield by-election, 1984 Tony Benn Labour returns after losing his redrawn Bristol East seat at the 1983 General Election.
Beaconsfield by-election, 1982 Tim Smith Conservative returns after losing his Ashfield seat in the 1979 General Election.
Glasgow Hillhead by-election, 19822: Roy Jenkins Social Democratic returns after a spell as European Commissioner, then co-founding the Social Democratic Party (SDP). He had first sat as a Labour MP for Southwark Central from 1948–50 and Birmingham Stechford from 1950-77.
Crosby by-election, 19811 Shirley Williams Social Democratic returns as the first-elected SDP MP. She had first sat as a Labour MP for Hitchin 1964-74 and for Hertford and Stevenage 1974-79
Warrington by-election, 1981 Douglas Hoyle Labour returns after losing his Nelson and Colne seat in the 1979 General Election.
Southend East by-election, 1980 Teddy Taylor Conservative returns after losing his Glasgow Cathcart seat at the 1979 General Election
South West Hertfordshire by-election, 1979 Richard Page Conservative returns after losing his Workington seat in the 1979 General Election
Knutsford by-election, 1979 Jock Bruce-Gardyne Conservative returns after losing his South Angus seat at the October 1974 General Election.
Clitheroe by-election, 1979 David Waddington Conservative returns after losing his Nelson and Colne seat at the October 1974 General Election.
Glasgow Garscadden by-election, 1978 Donald Dewar Labour returns after losing his Aberdeen South seat in the 1970 General Election.
Newham South by-election, 1974 Nigel Spearing Labour returns after losing his Acton seat in the February 1974 General Election.
Merthyr Tydfil by-election, 19722 Edward Rowlands Labour returns after losing his Cardiff North seat in the 1970 General Election.
Greenwich by-election, 1971 Guy Barnett Labour returns after losing his South Dorset seat in the 1964 General Election.
Southampton Itchen by-election, 1971 Bob Mitchell Labour returns after losing his Southampton Test seat in the 1970 General Election.
St Marylebone by-election, 1970 Kenneth Baker Conservative returns after losing his Acton seat in the 1970 General Election.
Chichester by-election, 1969 Christopher Chataway Conservative returns after losing his Lewisham North seat in the 1966 General Election.
Brighton Pavilion by-election, 1969 Julian Amery Conservative returns after losing his Preston North seat in the 1966 General Election.
New Forest by-election, 1968 Patrick McNair-Wilson Conservative returns after losing his Lewisham West seat in the 1966 General Election.
Warwick and Leamington by-election, 1968 Dudley Smith Conservative returns after losing his Brentford and Chiswick seat in the 1966 General Election.
West Derbyshire by-election, 1967 James Scott-Hopkins Conservative returns after losing his Cornwall North seat in the 1966 General Election.
Brierley Hill by-election, 1967 Fergus Montgomery Conservative returns after losing his Newcastle upon Tyne East seat in the 1964 General Election.
Honiton by-election, 1967 Peter Emery Conservative returns after losing his Reading seat in the 1966 General Election.
Saffron Walden by-election, 1965 Peter Kirk Conservative returns after losing his Gravesend seat in the 1964 General Election.
Salisbury by-election, 1965 Michael Hamilton Conservative returns after losing his Wellingborough seat in the 1964 General Election.
East Grinstead by-election, 1965 Geoffrey Johnson-Smith Conservative returns after losing his Holborn and St. Pancras South seat in the 1964 General Election.
Altrincham and Sale by-election, 1965 Anthony Barber Conservative returns after losing his Doncaster seat in the 1964 General Election.
St Marylebone by-election, 1963 Quintin Hogg Conservative returns after disclaiming his peerage. He had previously sat for Oxford 1938-1950.
Kinross and West Perthshire by-election, 1963 Sir Alec Douglas-Home Conservative returns after disclaiming his peerage. He had previously sat for Lanark 1931-45 and 1950-51.
Bristol South East by-election, 1963 Tony Benn Labour returns after disclaiming his peerage. He had been disqualified after the death of his father in 1960, and his election in a 1961 by-election had been adjudged undue on petition.
Middlesbrough East by-election, 1962 Arthur Bottomley Labour returns after losing his Rochester and Chatham seat in the 1959 General Election.
Ebbw Vale by-election, 1960 Michael Foot Labour returns after losing his Plymouth Devonport seat in the 1955 General Election.
Newport by-election, 1956 Frank Soskice Labour returns after his Sheffield Neepsend seat was abolished at the 1955 General Election.
Sheffield Neepsend by-election, 1950 Frank Soskice Labour returns after his Birkenhead East seat was abolished at the 1950 General Election.
Bootle by-election, 1911 Andrew Bonar Law Conservative returns after failing to win Manchester North-West in the December 1910 General Election.
Dundee by-election, 1908 Winston Churchill Liberal returns after losing his Manchester North West seat in a 1908 by-election, upon his appointment to the Board of Trade.
Dulwich by-election, 1906 Andrew Bonar Law Conservative returns after losing his Glasgow Blackfriars and Hutchesontown seat in the 1906 General Election.
City of London by-election, February 1906 Arthur Balfour Conservative returns after losing his Manchester East seat in the 1906 General Election.

Notes:

1 by-election gain lost at the subsequent General Election

2 by-election gain held at the subsequent General Election

Former MPs failing in a by-election

Re-election of Ministers

Until the Re-election of Ministers Acts 1919 and 1926 there were many cases of members having to seek re-election on appointment to ministerial office. In eight instances they were unsuccessful:

Shortest-serving by-election victors

Since 1945

Notes

Pre-1945

Youngest by-election victors

Babies of the House elected at by-elections

See Baby of the House of Commons

Oldest by-election victors

Debuts in Parliament:

Comebacks to Parliament:

In defence of a previously held seat:

First women by-election victors

The first woman to be elected in a by-election was Nancy Astor, who succeeded her husband at the Plymouth Sutton by-election, 1919, becoming the first woman to take her seat in the House of Commons.

The first woman to gain a seat in a by-election was Susan Lawrence who won the East Ham North by-election, 1926, although she had previously sat for the same seat between 1923-4.1

The first woman to gain a seat ab initio in a by-election was Jennie Lee who won the North Lanarkshire by-election, 1929, at the same time becoming the first woman Baby of the House of Commons.

Note 1 Mabel Philipson succeeded her husband at the Berwick-upon-Tweed by-election, 1923. He had been elected as a National Liberal Party candidate. She won as a Conservative so this could arguably be classed as the first gain by a woman.

First ethnic minority by-election victors

Whilst the first ethnic minority Members of Parliament were elected as early as the 1890s, it would be almost 100 years before one was returned at a by-election.

The first ethnic minority candidate to be elected in a by-election was Ashok Kumar who gained the Langbaurgh by-election, 1991 for Labour.

The first by-election in which all three major-party candidates were from the ethnic minorities was the Ealing Southall by-election, 2007, held by Labour.

First by-election victors from specific religions

When the UK Parliament was established in 1801, non-Anglicans were prevented from taking their seats as MPs under the Test Act 1672. However, Methodists took communion at Anglican churches until 1795, and some continued to do so, and many Presbyterians were prepared to accept Anglican communion, thus ensuring that members of these creeds were represented in the Parliament.[6] Some Unitarians were also elected.

The first by-election victor (and first ever MP) to be an adherent of the Eastern Orthodox Church was The Honourable Frederick North who was elected in 1792 for Banbury (to succeed his father who had entered the House of Lords), having converted to the faith the previous year.

The first Roman Catholic by-election victor in the UK Parliament was Daniel O'Connell in the Clare by-election, 1828. He was not permitted to take his seat until the following year.

David Salomons was the first Jewish by-election victor, at the Greenwich by-election, 1851.

Terry Rooney was the first Mormon by-election victor, at the Bradford North by-election, 1990.

Parmjit Singh Gill became the first Sikh by-election victor, at the Leicester South by-election, 2004.

Virendra Sharma became the first Hindu by-election victor, at the Ealing Southall by-election, 2007.

By-elections losers awarded seats on disqualification of winner

Two or more former MPs contest by-election

1 Conservative MPs David Davis and Walter Sweeney

This list is incomplete; you can help by expanding it.

Frequency and duration records

Longest period without a by-election

All periods of over a year between by-elections are listed:

1992, 1998 and 2010 are the only calendar years in history without a single by-election. Since 1992 and 2010 were nonetheless general election years, 1998 stands as the only year in British history without any parliamentary election.

Longest period between a vacancy arising and a by-election writ being moved

Longest period without a seat changing hands

The longest period without a seat changing hands in a by-election was the five years between the Conservative victories in the Glasgow Camlachie by-election, 1948 and the Sunderland South by-election, 1953.

During the short Parliaments of 1910, 1950-1 and 1974 no seats changed hands in a by-election.

Longest period between by-election gains for a party

The Liberal Party endured 29 years without a single by-election gain between the Holland and Boston by-election, 1929 and the Torrington by-election, 1958. It did not win a single by-election in the thirteen years between holding the Middlesbrough West by-election, 1945 and gaining Torrington.

Until the Crewe and Nantwich by-election, 2008, the opposition Conservative Party had not gained a seat in almost 26 years, the last being the Mitcham and Morden by-election, 1982, which occurred during the unique circumstances of the Falklands War and the sitting Labour MP defecting to the Social Democratic Party and seeking re-election under his new party label. The Conservatives' last gain while in Opposition was 30 years previously at the Ilford North by-election, 1978.

Labour's longest lean stretch was almost 18 years, between gaining the Brecon and Radnor by-election, 1939 and the Lewisham North by-election, 1957.1

Note 1 The Labour Party were the official opposition in the Parliament elected in 1935, but after the major parties agreed an electoral truce on the outbreak of war in 1939, they did not contest any Conservative or Liberal seats for the remainder of the Parliament, a period of six years, and were members of the wartime coalition government between May 1940 and May 1945.

Longest period between by-election holds for a party

The Conservatives did not successfully defend a single by-election in the eight years between their holds of the Richmond by-election, 1989 and the Uxbridge by-election, 1997, losing a record 15 consecutive seats where they were the incumbents. By the time of the by-election in Uxbridge, the victor in Richmond, William Hague, had become leader of the Conservative Party.

Labour's worst run was in losing 4 by-elections on the trot, which has occurred three times since 1945:

between holding the Newcastle-upon-Tyne Central by-election, 1976 and the Grimsby by-election, 1977.

between holding the Manchester Gorton by-election, 1967 and the Sheffield Brightside by-election, 1968.

between holding the Rhondda West by-election, 1967 and the Manchester Gorton by-election, 1967.

Longest period without an opposition gain

For a period of 11 years, until the Crewe and Nantwich by-election, 2008, the principal opposition Conservative Party failed to register a by-election gain against the incumbent Labour Government. This is the longest period of such failure since records began, and more than twice the previous record of the five years it took the then Labour opposition to gain the Lewisham North by-election, 1957.

Apart from the brief parliaments of 1910, 1950-1 and 1974, the parliaments of 1951-5 and 1997-2001 are the only occasions when the Government did not lose a by-election.

Most by-elections in one day

The largest number of by-elections held on a single day occurred on 23 January 1986 when 15 simultaneous contests were held in Northern Ireland. The elections had been engineered by the incumbent Unionist parties as a protest against the Anglo-Irish Agreement of 1985. They intended the results to be interpreted as a referendum on the treaty. The elections were boycotted by the main Nationalist parties except in four seats where they had a reasonable prospect of victory. In the event, the Social Democratic and Labour Party gained one seat, Newry and Armagh, from the Ulster Unionist Party.

Apart from the above example, it is common for UK mainland parties to schedule several by-elections on the same day. Motivations include attempting to divide opponents' resources and getting bad news (expected losses) out of the way. Since 1945, the largest number of simultaneous mainland by-elections has been 6, held on 16 November 1960. On four occasions, 5 by-elections have been held on the same day, most recently on 9 June 1994. Groupings of two or three are very common.

Before November 2012, the last day on which three by-elections had been held was 23 November 2000. In November 2012 there were two such groupings of three (15 November and 29 November). The last time there were six by-elections in one calendar month was in June 1994.

Most by-election losses in one day

The largest number of by-elections lost on a single day is three, when the Labour party lost Acton, Dudley and Meriden on 28 March 1968, all to the Conservatives.

Occasions since 1945 when two seats have fallen are:

Seats with more than one by-election in a single Parliament

Other seats with by-elections less than five years apart

By-election days

British Parliamentary elections are invariably held on a Thursday. The last by-election not held on a Thursday was the Hamilton by-election, 1978, held on Wednesday 31 May due to a World Cup opening match on the Thursday evening.

Due to an administrative oversight, the Manchester Exchange by-election, 1973 was held on Wednesday 27 June 1973. Prior to that, the last by-elections not held on a Thursday were the Saffron Walden by-election, 1965 held on Tuesday 23 March, and the Roxburgh, Selkirk and Peebles by-election, 1965 held the following day.

Until the mid-1960s, it was common to hold by-elections on any day of the week (other than Sunday).

Countermanded Poll

Very occasionally, a scheduled by-election may be overtaken by the calling of a general election and the dissolution of Parliament, in which case the poll is countermanded by the Returning Officer. There are only two occasions since 1918: a by-election was scheduled to take place in Warwick and Leamington on 21 November 1923, but was cancelled by a dissolution of Parliament on 16 November. A by-election was scheduled to poll between 13–17 October 1924 in London University but was cancelled by a dissolution of Parliament on 9 October.

Seats Left Vacant

Occasionally seats are left vacant for a substantial period.

No by-election writ was moved for any seat held by Sinn Féin after the 1918 general election. Four Sinn Féin candidates were elected in two different seats and would have had to decline one of them if they had wanted to take their seats. They were Éamon de Valera (East Clare and East Mayo), Arthur Griffith (East Cavan and North West Tyrone), Eoin MacNeill (Londonderry City and National University of Ireland) and Liam Mellowes (East Galway and North Meath).

By the end of the Parliament, the following Sinn Féin MPs had died without being replaced: Pierce McCan (East Tipperary) of influenza on 6 March 1919, Terence MacSwiney (Mid Cork) following a hunger strike in Brixton prison on 25 October 1920, Frank Lawless (North County Dublin) as a result of a riding injury on 16 April 1922, Joseph McGuinness (Longford) on 31 May 1922, Cathal Brugha (Waterford) in action during the Irish Civil War on 7 July 1922, Harry Boland (South Roscommon) shot while being arrested on 2 August 1922, Arthur Griffith (East Cavan and North West Tyrone) on 12 August 1922, and Michael Collins (South Cork assassinated on 22 August 1922). In each case their seats were abolished in 1922 as a result of the establishment of the Irish Free State.

Other than these cases the longest time a seat has been left vacant with no by-election held is when Dennis Vosper was elevated to the Peerage on 20 April 1964, and no writ was moved by the time Parliament was dissolved on 25 September 1964.

Causes of by-elections

By-elections prompted by assassination

By-elections prompted by accidental death

By-elections prompted by suicide

By-elections prompted by posthumous election of MP

By-elections prompted by scandal

By-elections prompted to provide seat for seat-less personality

By-elections prompted by party splits or disputes

By-elections resulting from Members seeking re-election over a single issue

By-elections to ratify a change of party

By-elections are ostensibly to vote for a 'person', not a 'party', meaning that a member switching parties mid-term is not cause for a by-election. However, some members do seek re-election under their new party as a point of principle.

By-elections triggered when member leaves on principle

By-elections prompted by Member's desire to contest another seat

By-elections caused by the previous result being declared void

By-elections prompted by disqualification of the sitting Member

By-elections prompted by expulsion from the House

By-elections prompted by lunacy

By-elections prompted by bankruptcy

By-elections prompted for miscellaneous reasons

By-elections prompted by death of member on wartime active service

Second World War

Notes: The above list is of those members either mentioned as having died on War Service in a written Commons answer from Prime Minister Winston Churchill on 19 January 1945, or who appear in the House of Commons Book of Remembrance unveiled in 1949.
a Mentioned in the written Commons answer, but does not appear in the House of Commons Book of Remembrance.
b Not mentioned in the written Commons answer, but does appear in the House of Commons Book of Remembrance.
NB:- The above list does not include the names of three members who deaths on active service were overtaken by the 1945 General Election. For a complete list see Records of members of parliament of the United Kingdom#Second World War

First World War

This list is incomplete; you can help by expanding it.

Miscellaneous records

Incumbents fall directly from first place to third place

1 Bruce Douglas-Mann had been re-elected as Labour MP for the seat in the 1979 General Election. In 1981, along with several other MPs, he defected to the newly formed Social Democratic Party. Against his new colleagues' advice, he honoured a pledge to face his electors under his new party colours and precipitated a by-election. He came second in the by-election which was won by the Conservatives. The new Labour candidate finished third.
2 the Liberal MP, Lt-Commander the Hon. Joseph Montague Kenworthy, defected to Labour and sought re-election under his new colours. He was successful, and the new Liberal candidate lost his deposit.

Incumbent Government gains seats

These records show the rare occasions when the Government won a seat they had not won at the previous General election.

Conservative

1 Seat awarded by Election Court to Conservative runner-up because Labour victor deemed ineligible.
2 An arguable gain; Stockport was a two-member seat; in the 1918 general election it was won by two supporters of the Coalition Government, one a Liberal and one a Labour member. After a death and a resignation, a by-election was held for both seats. The seats were again won by two Coalition Government supporters, but this time a Conservative and a Liberal, while a Labour candidate who did not support the government was unsuccessful.

Labour

1 Uncontested gain from Irish Nationalist.
2 Liberal MP defected to Labour and was re-elected as Labour at a by-election the Liberals did not contest.

Labour won both the West Bromwich West by-election, 2000 and Glasgow North East by-election, 2009, regarded as a gain from the contest at the United Kingdom general elections in 1997 and 2005 respectively as those seats had been contested by the then Speakers of the House of Commons, although prior to assuming the Speakership they had both been elected as Labour MPs in safe seats.

Liberal

Principal Opposition loses seats

These records show the rare occasions when the official Opposition failed to hold on to a seat they had won at the previous General election.

Conservative

1A confused situation, where the victorious Empire Free Trade Crusade candidate was effectively a right-wing unofficial Conservative, who subsequently took the whip and was re-elected as official Conservative candidate.

Labour

1seat awarded by Election Court to Conservative runner-up because Labour victor Viscount Stansgate was deemed ineligible.
2Sir Owen Thomas had been elected as Independent Labour, took the whip for a while, before reverting to Independent Labour.

By-election holds overturned at next general election

By-elections usually see the high-water mark of any challenge to the incumbents. On rare occasions a party has failed to overturn an incumbent in the by-election yet has gone on to gain the seat at the subsequent general election.

By-election victors had not contested previous general election

It is unusual for a political party which has not contested a seat at a general election to take it at a subsequent by-election. Many of the parties which have done so were founded after the general election. Independent candidates are not included.

Notes:

1 Alliance partner the Liberal party had contested the seat.
2 the victor was the sitting MP, who had left the Labour party.

Victory from third or lower place

Incumbent party did not contest

Losers had been unopposed at previous election

Notes:

1 the Nationalists did not contest the by-election
2 the Speaker had originally been a Liberal MP.

Major party did not run

Great Britain

Neither the Liberal Democrat nor the Labour Party stood candidates in the Haltemprice and Howden by-election, 2008. The by-election was a single-issue election in regards to government security policy, in which the Liberal Democrats supported the Conservative candidate.

The Conservative Party did not run a candidate in the Bristol South East by-election, 1963, the Carmarthen by-election, 1957, the Paisley by-election, 1948 or the Ogmore by-election, 1946.

The Labour Party did not run in the City of London by-election, 1945, the Kensington South by-election, 1945 or the Combined English Universities by-election, 1946.

Prior to 2008, the last by-election without an official Liberal Democrat, Liberal or SDP candidate had been the Newham North East by-election, 1994; the Lib Dems nominated a candidate, but he joined the Labour Party before the election. No official Liberal candidate was nominated for the Glasgow Central by-election, 1980, whilst no Liberal stood in either the Westhoughton by-election, 1973 or the West Bromwich by-election, 1973, both held on 24 May 1973.

The last Scottish by-elections without official Scottish National Party candidates were the Roxburgh, Selkirk and Peebles by-election, 1965 and the Rutherglen by-election, 1964.

The last Welsh by-elections without official Welsh Nationalist candidates were the Abertillery by-election, 1950, the Pontypool by-election, 1946 and the Monmouth by-election, 1945.

Northern Ireland

The more fluid nature of politics in Northern Ireland makes it harder to define all major parties. In addition many by-elections have not been contested by parties holding other seats in the House of Commons, whether due to agreements with other parties, poor organisation in the constituency or the particular circumstances on the by-election. However, for the period since 1981 (which saw the first by-elections in twelve years, during which time several major political realignments had occurred) the main parties are usually considered to be the Democratic Unionist Party, Sinn Féin, the Social Democratic and Labour Party (SDLP) and the Ulster Unionist Party.

The last by-elections without official Democratic Unionist candidates were the North Down by-election, 1995 and the Upper Bann by-election, 1990. They also did not stand in the twelve seats held by other Unionist parties in the 15 by-elections in 1986.

The last by-election without official candidates from either Sinn Féin or the SDLP was the North Down by-election, 1995. Both parties also declined to stand in the eleven Unionist majority seats in the 15 by-elections in 1986. The SDLP also did not contest either the April or August 1981 by-elections in Fermanagh and South Tyrone.

The last by-elections without official Ulster Unionist candidates were North Antrim, East Belfast, Mid Ulster and North Down in the 15 by-elections in 1986.

The main British parties have generally not stood in seats in Northern Ireland. The by-election exceptions are the Upper Bann by-election, 1990 (Conservatives and continuing SDP) and the North Down by-election, 1995 (Conservatives). Prior to the 1970s the Ulster Unionists were effectively the local Conservatives, whilst the Liberals contested some but not all seats. The SDLP has traditionally seen itself as a "sister party" to the British Labour party, and its MPs usually accept the Labour whip in Parliament.

Victories by minor parties

Victories by independent and minor party candidates since 1945. For a complete list, see the list of UK minor party and independent MPs elected.

Minor parties other strong performance

Parties without representation in the House of Commons which saved their deposit:

Party By-election Candidate Votes Percentage Position Notes
Alliance Belfast East by-election, 1986 Oliver Napier 5,917 17.4 2 Party historically represented at Westminster
Alliance Belfast North by-election, 1986 Paul Maguire 5,072 16.7 2 Party historically represented at Westminster
Alliance Belfast South by-election, 1982 David Cook 11,726 26.9 2 Party historically represented at Westminster
Alliance Belfast South by-election, 1986 David Cook 7,635 25.0 2 Party historically represented at Westminster
Alliance East Antrim by-election, 1986 Sean Neeson 5,405 15.1 2 Party historically represented at Westminster
Alliance North Down by-election, 1986 John Cushnahan 8,066 20.8 2 Party historically represented at Westminster
Alliance North Down by-election, 1995 Oliver Napier 6,970 25.4 3 Party historically represented at Westminster
Alliance South Antrim by-election, 2000 David Ford 2,031 6.6 5 Party represented in the Northern Ireland Assembly and historically at Westminster
All Party Alliance Oldham West by-election, 1968 John Creasey 3,389 13.2 3
BNP Dagenham by-election, 1994 John Tyndall 1,511 7.0 4
BNP Barnsley Central by-election, 2011 Enis Dalton 1,463 6.0 4 Party represented in the European Parliament
BNP Sedgefield by-election, 2007 Andrew Spence 2,494 8.9 4
BNP Rotherham by-election, 2012 Marlene Guest 1,804 8.5 3 Party represented in the European Parliament
English Democrats Haltemprice and Howden by-election, 2008 Joanne Robinson 1,714 7.2 3
Green Haltemprice and Howden by-election, 2008 Shan Oakes 1,758 7.4 2 Party represented in the European Parliament and historically and subsequently at Westminster
Green Norwich North by-election, 2009 Rupert Read 3,350 9.7 5 Party represented in the European Parliament and historically and subsequently at Westminster
Green Vauxhall by-election, 1989 Henry Bewley 1,767 6.1 4 Party historically represented at Westminster
Independent Mid Ulster by-election, 2013 Nigel Lutton 12,781 34.4 2 DUP, UUP and TUV did not stand candidates and supported Lutton's candidacy[9][10]
Independent Combined English Universities by-election, 1946 Mary Stocks 5,124 28.0 2
Independent Combined English Universities by-election, 1946 Ernest Simon 4,028 22.0 3
Independent East Londonderry by-election, 1986 Peter Barry 2,001 6.1 2
Independent South Shields by-election, 2013 Ahmed Khan 1,331 5.4 4
Independent Barnsley Central by-election, 2011 Tony Devoy 1,266 5.2 5
Independent Hamilton South by-election, 1999 Stephen Mungall 1,075 5.5 5
Independent Sedgefield by-election, 2007 Paul Gittins 1,885 6.7 5
Independent South Antrim by-election, 1986 Peter Barry 1,870 5.9 2
Independent Strangford by-election, 1986 Peter Barry 1,993 5.8 2
Independent Labour Combined English Universities by-election, 1946 S. Wormald 3,414 18.7 4
Independent Labour Liverpool Walton by-election, 1991 Lesley Mahmood 2,613 6.5 3
Independent Unionist Down by-election, 1946 J. Hastings-Little 16,895 17.1 3
Independent Unionist North Down by-election, 1995 Alan Chambers 2,170 7.9 4
Anti-Partition Armagh by-election, 1948 James O'Reilly 16,284 40.3 2 Party later represented at Westminster
Irish Labour Belfast West by-election, 1950 Jack Beattie 30,833 49.2 2 Party previously and later represented at Westminster
National Fellowship Bristol South East by-election, 1963 Edward Martell 4,834 19.0 2
National Front West Bromwich by-election, 1973 Martin Webster 4,789 16.0 3
NI Labour Belfast East by-election, 1959 James Gardner 14,264 42.2 2 Party represented in the Parliament of Northern Ireland and previously at Westminster
NI Labour Belfast South by-election, 1952 Samuel Napier 7,655 24.9 2 Party previously represented at Westminster
NI Labour Belfast South by-election, 1963 Norman Searight 7,209 25.8 2 Party represented in the Parliament of Northern Ireland and previously at Westminster
NI Labour Down by-election, 1946 Desmond Donnelly 28,846 29.3 2 Party represented in the Parliament of Northern Ireland and previously at Westminster
Peace Middlesbrough by-election, 2012 Imdad Hussain 1,060 6.3 5
Plaid Cymru Aberdare by-election, 1946 Wynne Samuel 7,090 20.0 2 Party later represented at Westminster
Plaid Cymru Aberdare by-election, 1954 Gwynfor Evans 5,671 16.0 2 Party later represented at Westminster
Plaid Cymru Merthyr Tydfil by-election, 1972 Emrys Roberts 11,852 37.0 2 Party previously and later represented at Westminster
Plaid Cymru Ogmore by-election, 1946 T. R. Morgan 5,685 29.4 2 Party later represented at Westminster
People Before Profit Belfast West by-election, 2011 Gerry Carroll 1,751 7.6 3 Two members elected to the Dáil in 2011
Respect Birmingham Hodge Hill by-election, 2004 John Rees 1,282 6.3 4 George Galloway MP was a party member, but was usually considered Independent Labour in Parliament at the time
Respect Leicester South by-election, 2004 Yvonne Ridley 3,724 12.7 4 George Galloway MP was a party member, but was usually considered Independent Labour in Parliament at the time
SNP Glasgow Bridgeton by-election, 1946 M. Wood 2,575 13.9 4 Party previously and later represented at Westminster
SNP Glasgow Bridgeton by-election, 1961 Ian MacDonald 3,549 18.7 3 Party previously and later represented at Westminster
SNP Glasgow Pollok by-election, 1967 George Leslie 10,884 29.2 3 Party previously and later represented at Westminster
SNP South Ayrshire by-election, 1970 Sam Purdie 7,785 19.9 3 Party previously and later represented at Westminster
SNP West Lothian by-election, 1962 William Wolfe 9,750 23.3 2 Party previously and later represented at Westminster
Scottish Socialist Falkirk West by-election, 2000 Iain Hunter 989 5.1 4 Party represented in the Scottish Parliament
Scottish Socialist Glasgow Anniesland by-election, 2000 Charlie McCarthy 1,441 7.2 5 Party represented in the Scottish Parliament
Scottish Socialist Hamilton South by-election, 1999 Shareen Blackall 1,847 9.5 3 Party represented in the Scottish Parliament
Social Democratic Neath by-election, 1991 John Warman 1,826 5.3 5 Party of same name which was dissolved in 1990 was represented in Parliament
Socialist Alliance Preston by-election, 2000 Terry Cartwright 1,210 5.7 4
Socialist Alliance Tottenham by-election, 2000 Weyman Bennett 885 5.4 4
Socialist Labour Barnsley East by-election, 1996 Ken Capstick 949 5.3 4
Socialist Labour Hemsworth by-election, 1996 Brenda Nixon 1,193 5.4 4
Socialist Labour Ogmore by-election, 2002 Christopher Herriot 1,152 6.3 5
UKIP Hartlepool by-election, 2004 Stephen Allison 2,347 10.2 3 Party represented in the European Parliament
UKIP Bromley and Chislehurst by-election, 2006 Nigel Farage 2,347 8.1 3 Party represented in the European Parliament
UKIP Norwich North by-election, 2009 Glenn Tingle 4,068 11.8 4 Party represented in the European Parliament
UKIP Oldham East and Saddleworth by-election, 2011 Paul Nuttall 2,029 5.8 4 Party represented in the European Parliament
UKIP Barnsley Central by-election, 2011 Jane Collins 2,953 12.2 2 Party represented in the European Parliament
UKIP Feltham and Heston by-election, 2011 Andrew Charalambous 1,276 5.5 4 Party represented in the European Parliament
UKIP Cardiff South and Penarth by-election, 2012 Simon Zeigler 1,179 6.1 5 Party represented in the European Parliament
UKIP Corby by-election, 2012 Margot Parker 5,108 14.3 3 Party represented in the European Parliament
UKIP Rotherham by-election, 2012 Jane Collins 4,648 21.8 2 Party represented in the European Parliament
UKIP Middlesbrough by-election, 2012 Richard Elvin 1,990 11.8 2 Party represented in the European Parliament
UKIP Croydon North by-election, 2012 Winston McKenzie 1,400 5.7 3 Party represented in the European Parliament
UKIP Eastleigh by-election, 2013 Diane James 11,571 27.8 2 Party represented in the European Parliament
UKIP South Shields by-election, 2013 Richard Elvin 5,988 24.2 2 Party represented in the European Parliament
UKIP Wythenshawe and Sale East by-election, 2014 John Bickley 4,301 18.0 2 Party represented in the European Parliament
UKIP Newark by-election, 2014 Roger Helmer 10,028 25.9 2 Party represented in the European Parliament
UKIP Heywood and Middleton by-election, 2014 John Bickley 11,016 38.7 2 Party represented in the European Parliament, and also represented in the House of Commons following the Clacton by-election the same day.
Workers' Party Belfast North by-election, 1986 Seamus Lynch 3,563 11.8 3
Workers' Party Lagan Valley by-election, 1986 John Lowry 3,328 9.3 2
Workers' Party Upper Bann by-election, 1986 Tom French 6,978 19.2 2

Miscellaneous notable results

It is unusual for one of the major parties to finish outside of the top three in England and Wales (or outside of the top four in Scotland). It is also unusual for the principal opposition party to suffer a significant reverse in its share of the vote or ranking.

Notes 1Excluding the Westminster St George's by-election, 1931 and the Paddington South by-election, 1930, which were essentially intra-Conservative contests, the previous worst result was, ironically, the Bromley by-election, 1930

By-elections having national significance

Firsts and lasts

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 Colin Rallings and Michael Thrasher, British electoral facts, 1832-2006 (Parliamentary Research Services)
  2. ↑ "Labour holds in Cardiff and Manchester but turnout is low". Channel 4 News. Retrieved 16 November 2012.
  3. ↑ South Shields by-election UK Polling Report
  4. ↑ Roy Jenkins Churchill (Macmillan, 2001), page 325 ISBN 0-333-78290-9
  5. ↑ Since the Reform Act 1832; of those whose age can be verified.
  6. ↑ Chris Pond, Parliament and Religious Disabilities
  7. ↑ A verdict of accidental death was recorded at the inquest. Clitherow was a Medical Doctor and had taken seven barbitone tablets, described by the pathologist as a "bold dose". See The Times, 19 June 1947, p. 2.
  8. ↑ http://www.leighrayment.com/baronetage/baronetsC2.htm
  9. ↑ http://www.tuv.org.uk/press-releases/view/1765/mid-ulster-tuv-chair-signs-lutton%27s-nomination-papers
  10. ↑ http://www.bbc.co.uk/news/uk-northern-ireland-21462044
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