This article lists the Ulster Unionist Party's election results in UK parliamentary elections.

Summary of general election performance Year Number of Candidates Total votes Average votes per candidate % UK vote % NI vote Change (percentage points) Saved deposits Number of MPs(out of NI total)1970 12 422,041 35,170 1.5 ? ? ? 1974 Feb 7 232,103 33,158 0.8 ? -0.7 ? 1974 Oct 7 256,065 36,580 0.9 ? +0.1 ? 1979 11 254,578 23,143 0.8 ? -0.1 ? 1983 16 259,952 16,247 0.8 ? 0.0 ? 1987 12 276,230 23,019 0.8 ? 0.0 ? 1992 13 271,049 20,850 0.8 ? 0.0 ? 1997 16 258,349 16,147 0.8 ? 0.0 ? 2001 17 216,839 12,755 0.8 26.8 0.0 ? 2005 18 127,414 7,079 0.5 17.8 -0.3 ? 2010 17 102,361 6,021 0.3 15.2 -0.1 ? 2015 15 114,935 7,662 0.4 16.0 0.1 13 2017 14 83,280 5,949 0.3 10.3 0.0 11 2019 16 93,123 5,820 0.3 11.7 0.0 14

Election results 1922 general election Constituency Candidate Votes % PositionAntrim unopposed N/A 1Antrim unopposed N/A 1Armagh unopposed N/A 1Belfast East unopposed N/A 1Belfast North unopposed N/A 1Belfast South unopposed N/A 1Belfast West unopposed N/A 1Down unopposed N/A 1Down unopposed N/A 1Fermanagh and Tyrone 38,640 23.1 3Fermanagh and Tyrone 38,589 23.1 4Londonderry 30,743 75.7 1

1923 general election Constituency Candidate Votes % PositionAntrim unopposed N/A 1Antrim unopposed N/A 1Armagh unopposed N/A 1Belfast East unopposed N/A 1Belfast North 16,771 52.5 1Belfast South unopposed N/A 1Belfast West 24,975 52.9 1Down unopposed N/A 1Down unopposed N/A 1Fermanagh and Tyrone 37,733 23.1 3Fermanagh and Tyrone 37,682 23.1 4Londonderry unopposed N/A 1

1924 general election Constituency Candidate Votes % PositionAntrim 60,868 49.0 1Antrim 60,764 49.0 2Armagh 29,021 71.2 1Belfast East unopposed N/A 1Belfast North 34,182 96.6 1Belfast South unopposed N/A 1Belfast West 28,435 54.5 1Down 58,929 46.5 1Down 58,777 46.4 2Fermanagh and Tyrone 44,716 43.5 1Fermanagh and Tyrone 44,711 43.4 2Londonderry 30,875 82.9 1

By-elections, 1924–1929 Election Candidate Votes % Position1929 Londonderry by-election unopposed N/A 1

1929 general election Constituency Candidate Votes % PositionAntrim 53,864 37.5 1Antrim 52,851 36.8 2Armagh 29,966 67.4 1Belfast East 27,855 75.1 1Belfast North 27,812 62.1 1Belfast South 24,019 62.9 1Belfast West 33,274 57.9 1Down 54,073 36.3 1Down 53,943 36.2 2Londonderry unopposed N/A 1

1931 general election Constituency Candidate Votes % PositionAntrim unopposed N/A 1Antrim unopposed N/A 1Armagh unopposed N/A 1Belfast East 28,431 75.1 1Belfast North unopposed N/A 1Belfast South unopposed N/A 1Belfast West 31,113 58.6 1Down unopposed N/A 1Down unopposed N/A 1Fermanagh and Tyrone 45,101 23.6 3Fermanagh and Tyrone 44,921 23.5 4Londonderry unopposed N/A 1

1935 general election Constituency Candidate Votes % PositionAntrim unopposed N/A 1Antrim unopposed N/A 1Armagh 34,002 67.6 1Belfast East unopposed N/A 1Belfast North unopposed N/A 1Belfast South unopposed N/A 1Belfast West 34,060 62.6 1Down 66,324 43.5 1Down 58,777 46.4 2Fermanagh and Tyrone 46,625 24.0 3Fermanagh and Tyrone 46,000 23.7 4Londonderry unopposed N/A 1

By-elections, 1935–1945 Election Candidate Votes % Position1939 Down by-election unopposed N/A 11940 Belfast East by-election unopposed N/A 11943 Antrim by-election 42,371 69.4 11943 Belfast West by-election 14,426 33.4 2

1945 general election Constituency Candidate Votes % PositionAntrim 57,259 43.1 1Antrim 57,232 43.1 2Armagh unopposed N/A 1Belfast East 21,443 56.4 1Belfast North 25,761 55.3 1Belfast South 24,282 52.2 1Belfast West 26,729 46.5 2Down 24,148 20.9 2Down 22,730 19.6 3Fermanagh and Tyrone 46,392 22.8 3Fermanagh and Tyrone 46,260 22.8 4Londonderry 40,214 50.8 1

By-elections, 1945–1950 Election Candidate Votes % Position1946 Down by-election 50,699 51.4 11948 Armagh by-election 36,200 59.7 1

1950 general election Constituency Candidate Votes % PositionArmagh unopposed N/A 1Belfast East 29,844 63.3 1Belfast North 36,412 64.4 1Belfast South 34,620 75.2 1Belfast West 33,917 51.5 1Fermanagh and South Tyrone 29,877 48.1 2Londonderry 36,602 62.6 1Mid Ulster 29,721 47.4 2North Antrim unopposed N/A 1North Down 41,810 79.4 1South Antrim 41,023 83.6 1South Down 38,508 63.5 1

By-elections, 1950–1951 Election Candidate Votes % Position1950 Belfast West by-election 31,796 50.8 1

1951 general election Constituency Candidate Votes % PositionArmagh unopposed N/A 1Belfast East 28,881 61.7 1Belfast North 34,995 60.7 1Belfast South 37,046 75.8 1Belfast West 33,149 50.0 2Fermanagh and South Tyrone 30,268 47.9 2Londonderry unopposed N/A 1Mid Ulster 29,701 47.3 2North Antrim unopposed N/A 1North Down 43,285 81.4 1South Antrim unopposed N/A 1South Down 37,789 58.4 1

By-elections, 1951–1955 Election Candidate Votes % Position1951 Londonderry by-election unopposed N/A 11952 North Antrim by-election unopposed N/A 11952 Belfast South by-election 23,067 75.1 11953 North Down by-election unopposed N/A 11954 Armagh by-election unopposed N/A 1

1955 general election Constituency Candidate Votes % PositionArmagh 38,617 64.4 1Belfast East 26,938 62.5 1Belfast North 33,745 63.3 1Belfast South 33,392 78.4 1Belfast West 34,191 58.3 1Fermanagh and South Tyrone 30,268 49.8 2Londonderry 35,673 64.5 1Mid Ulster 29,477 49.8 2North Antrim 41,763 86.0 1North Down 50,315 96.9 1South Antrim 50,347 90.7 1South Down 37,921 65.9 1

Although Grosvenor failed to win Fermanagh and South Tyrone, he was declared elected after the winning candidate was found to be ineligible.

By-elections, 1955–1959 Election Candidate Votes % Position1955 Mid Ulster by-election 29,586 49.3 21959 Belfast East by-election 19,524 57.8 1

Although Beattie failed to win Mid Ulster, he was declared elected after the winning candidate was found to be ineligible, but was then in turn disqualified as ineligible. A new by-election was held, which the Ulster Unionist Party did not contest.

1959 general election Constituency Candidate Votes % PositionArmagh 40,325 85.5 1Belfast East 26,510 60.1 1Belfast North 32,173 60.7 1Belfast South 30,164 69.9 1Belfast West 28,898 54.1 1Fermanagh and South Tyrone 32,080 81.4 1Londonderry 37,529 73.0 1Mid Ulster 33,093 70.0 1North Antrim 42,807 94.9 1North Down 51,773 98.0 1South Antrim 52,786 95.1 1South Down 36,875 85.4 1

By-elections, 1959–1964 Election Candidate Votes % Position1963 Belfast South by-election 17,989 64.3 1

1964 general election Constituency Candidate Votes % PositionArmagh 35,223 65.0 1Belfast East 24,804 58.8 1Belfast North 29,976 59.6 1Belfast South 27,422 69.8 1Belfast West 21,337 41.2 1Fermanagh and South Tyrone 30,010 55.1 1Londonderry 37,700 64.1 1Mid Ulster 29,715 51.6 1North Antrim 40,372 90.1 1North Down 45,091 73.5 1South Antrim 47,325 69.9 1South Down 32,922 59.0 1

1966 general election Constituency Candidate Votes % PositionArmagh 34,687 72.0 1Belfast East 21,283 54.7 1Belfast North 26,891 57.4 1Belfast South 23,329 65.4 1Belfast West 24,281 48.0 2Fermanagh and South Tyrone 29,352 54.0 1Londonderry 34,729 58.1 1Mid Ulster 29,728 52.3 1North Antrim 31,927 78.1 1North Down 38,706 78.5 1South Antrim 40,840 64.3 1South Down 32,876 64.0 1

By-elections, 1966–1970 Election Candidate Votes % Position1969 Mid Ulster by-election 29,437 46.7 2

1970 general election Constituency Candidate Votes % PositionArmagh 37,667 55.3 1Belfast East 26,778 59.5 1Belfast North 28,668 48.5 1Belfast South 27,523 70.4 1Belfast West 27,451 47.3 2Fermanagh and South Tyrone 31,390 48.9 2Londonderry 39,141 53.1 1Mid Ulster 31,810 45.1 2North Antrim 21,451 36.6 2North Down 55,679 69.0 1South Antrim 59,589 61.2 1South Down 34,894 54.3 1

February 1974 general election Constituency Candidate Votes % PositionArmagh 33,194 53.7 1Belfast North 21,531 43.7 1Fermanagh and South Tyrone 26,858 43.6 1Londonderry 33,060 52.7 1North Down 38,169 61.1 1South Antrim 48,203 67.6 1South Down 31,088 52.1 1

October 1974 general election Constituency Candidate Votes % PositionArmagh 37,518 60.0 1Belfast North 29,662 62.6 1Fermanagh and South Tyrone 30,285 47.9 2Londonderry 35,138 54.4 1North Down 40,996 72.0 1South Antrim 48,892 71.5 1South Down 33,614 50.8 1

1979 general election Constituency Candidate Votes % PositionArmagh 31,688 48.5 1Belfast East 15,930 31.2 2Belfast North 10,695 25.3 2Belfast South 28,875 61.7 1Belfast West 8,245 24.8 2Fermanagh and South Tyrone 17,411 28.0 2Londonderry 31,592 49.7 1North Antrim 15,398 23.4 2North Down 11,728 18.9 3South Antrim 50,782 69.0 1South Down 32,254 50.0 1

By-elections, 1979–1983 Election Candidate Votes % PositionApril 1981 Fermanagh and South Tyrone by-election 29,046 48.8 2August 1981 Fermanagh and South Tyrone by-election 29,048 45.6 21982 Belfast South by-election 17,123 39.3 1

1983 general election Constituency Candidate Votes % PositionBelfast East 9,642 24.8 2Belfast North 15,339 36.2 1Belfast South 18,669 50.0 1Belfast West 2,435 5.5 4East Antrim 14,293 37.4 1East Londonderry 19,469 37.9 1Fermanagh and South Tyrone 28,630 47.6 1Lagan Valley 24,017 59.2 1Mid Ulster 7,066 13.1 4Newry and Armagh 18,988 40.0 1North Antrim 10,749 24.3 2North Down 8,261 20.3 3South Antrim 17,727 45.7 1South Down 20,693 40.3 1Strangford 19,086 48.8 1Upper Bann 24,888 56.9 1

By-elections, 1983–1987 Election Candidate Votes % Position1986 Belfast North by-election 21,649 71.5 11986 Belfast South by-election 21,771 71.3 11986 East Londonderry by-election 30,922 93.9 11986 Fermanagh and South Tyrone by-election 27,857 49.7 11986 Lagan Valley by-election 32,514 90.7 11986 Newry and Armagh by-election 20,111 40.3 21986 South Antrim by-election 30,087 94.1 11986 South Down by-election 24,963 48.4 11986 Strangford by-election 32,627 94.2 11986 Upper Bann by-election 29,311 80.8 1

1987 general election Constituency Candidate Votes % PositionBelfast North 14,355 39.0 1Belfast South 18,917 57.8 1Belfast West 7,646 18.7 3East Antrim 23,942 71.6 1East Londonderry 29,532 60.5 1Fermanagh and South Tyrone 27,446 49.6 1Lagan Valley 29,101 70.7 1Newry and Armagh 19,812 37.9 2South Antrim 25,395 69.8 1South Down 25,848 45.7 2Strangford 28,199 75.9 1Upper Bann 25,137 61.5 1

By-elections, 1987–1992 Election Candidate Votes % Position1990 Upper Bann by-election 20,547 58.0 1

1992 general election Constituency Candidate Votes % PositionBelfast North 17,240 48.0 1Belfast South 16,336 48.6 1Belfast West 4,766 11.9 3East Antrim 16,966 43.2 1East Londonderry 30,370 57.6 1Fermanagh and South Tyrone 26,923 48.8 1Lagan Valley 29,772 60.8 1Newry and Armagh 18,982 36.1 2North Antrim 8,216 18.1 2South Antrim 29,956 70.9 1South Down 25,181 40.9 2Strangford 19,517 43.6 1Upper Bann 26,824 59.0 1

By-elections, 1992–1997 Election Candidate Votes % Position1995 North Down by-election 7,232 26.4 2

1997 general election Constituency Candidate Votes % PositionBelfast East 9,886 25.3 2Belfast North 21,478 51.8 1Belfast South 14,201 36.0 1Belfast West 1,556 3.4 4East Antrim 13,318 38.8 1East Londonderry 13,558 36.0 1Fermanagh and South Tyrone 24,862 51.5 1Lagan Valley 24,560 55.4 1Newry and Armagh 18,015 33.8 2North Antrim 10,921 23.6 2North Down 11,368 31.1 2South Antrim 23,108 57.5 1South Down 16,248 32.8 2Strangford 18,431 44.3 1Upper Bann 20,836 43.6 1West Tyrone 16,003 34.6 1

By-elections, 1997–2001 Election Candidate Votes % Position2000 South Antrim by-election 10,779 35.3 2

2001 general election Constituency Candidate Votes % PositionBelfast East 8,550 23.2 2Belfast North 4,904 12.0 4Belfast South 17,008 44.8 1Belfast West 2,541 6.2 4East Antrim 13,101 36.4 1East Londonderry 10,912 27.4 2Fermanagh and South Tyrone 17,686 34.0 2Foyle 3,360 6.9 4Lagan Valley 25,966 56.5 1Newry and Armagh 6,833 12.3 4North Antrim 10,315 21.0 2North Down 20,833 56.0 1South Antrim 16,366 37.1 1South Down 9,173 17.6 3Strangford 17,422 40.3 2Upper Bann 17,095 33.5 2West Tyrone 14,774 30.4 2

2005 general election