# Ulster Unionist Party (UUP)

Party in United Kingdom

On the ballot: 1918–2024. Elections: 170. Contests: 2,025. [Wikidata](https://www.wikidata.org/wiki/Q841045)

## Vote share and seats

Vote share in each election on record, with the share of seats won.

| Year | Election | Vote share | Won |
| --- | --- | --- | --- |
| 2024 | [2024 United Kingdom general election](https://electionsarchive.com/gb/2024-07-04-general.md) | 0.3% | 1 of 650 |
| 2019 | [2019 United Kingdom general election](https://electionsarchive.com/gb/2019-12-12-general.md) | 0.3% | 0 of 650 |
| 2017 | [2017 United Kingdom general election](https://electionsarchive.com/gb/2017-06-08-general.md) | 0.3% | 0 of 650 |
| 2015 | [2015 United Kingdom general election](https://electionsarchive.com/gb/2015-05-07-general.md) | 0.4% | 2 of 650 |
| 2005 | [2005 United Kingdom general election](https://electionsarchive.com/gb/2005-05-05-general.md) | 0.5% | 1 of 646 |
| 2001 | [2001 United Kingdom general election](https://electionsarchive.com/gb/2001-06-07-general.md) | 0.8% | 6 of 659 |
| 1997 | [1997 United Kingdom general election](https://electionsarchive.com/gb/1997-05-01-general.md) | 0.8% | 10 of 659 |
| 1992 | [1992 United Kingdom general election](https://electionsarchive.com/gb/1992-04-09-general.md) | 0.8% | 9 of 651 |
| 1987 | [1987 United Kingdom general election](https://electionsarchive.com/gb/1987-06-11-general.md) | 0.8% | 9 of 650 |
| 1983 | [1983 United Kingdom general election](https://electionsarchive.com/gb/1983-06-09-general.md) | 0.8% | 11 of 650 |
| 1979 | [1979 United Kingdom general election](https://electionsarchive.com/gb/1979-05-03-general.md) | 0.8% | 5 of 635 |
| 1974 | [October 1974 United Kingdom general election](https://electionsarchive.com/gb/1974-10-10-general.md) | 0.9% | 6 of 635 |
| 1974 | [February 1974 United Kingdom general election](https://electionsarchive.com/gb/1974-02-28-general.md) | 0.7% | 7 of 635 |
| 1970 | [1970 United Kingdom general election](https://electionsarchive.com/gb/1970-06-18-general.md) | 1.5% | 8 of 630 |
| 1966 | [1966 United Kingdom general election](https://electionsarchive.com/gb/1966-03-31-general.md) | 1.4% | 11 of 630 |
| 1964 | [1964 United Kingdom general election](https://electionsarchive.com/gb/1964-10-15-general.md) | 1.5% | 12 of 630 |
| 1959 | [1959 United Kingdom general election](https://electionsarchive.com/gb/1959-10-08-general.md) | 1.6% | 12 of 630 |
| 1955 | [1955 United Kingdom general election](https://electionsarchive.com/gb/1955-05-26-general.md) | 1.7% | 10 of 630 |
| 1951 | [1951 United Kingdom general election](https://electionsarchive.com/gb/1951-10-25-general.md) | 1.0% | 9 of 625 |
| 1950 | [1950 United Kingdom general election](https://electionsarchive.com/gb/1950-02-23-general.md) | 1.2% | 10 of 625 |
| 1945 | [1945 United Kingdom general election](https://electionsarchive.com/gb/1945-07-05-general.md) | 1.6% | 9 of 640 |
| 1935 | [1935 United Kingdom general election](https://electionsarchive.com/gb/1935-11-14-general.md) | 1.3% | 11 of 615 |
| 1931 | [1931 United Kingdom general election](https://electionsarchive.com/gb/1931-10-27-general.md) | 0.7% | 11 of 615 |
| 1929 | [1929 United Kingdom general election](https://electionsarchive.com/gb/1929-05-30-general.md) | 1.6% | 11 of 615 |
| 1924 | [1924 United Kingdom general election](https://electionsarchive.com/gb/1924-10-29-general.md) | 2.7% | 13 of 615 |
| 1923 | [1923 United Kingdom general election](https://electionsarchive.com/gb/1923-12-06-general.md) | 0.8% | 11 of 615 |
| 1922 | [1922 United Kingdom general election](https://electionsarchive.com/gb/1922-11-15-general.md) | 0.8% | 11 of 615 |
| 1918 | [1918 United Kingdom general election](https://electionsarchive.com/gb/1918-12-14-general.md) | <0.1% | 1 of 707 |

## Lineage and affiliations

- [Group of the European People's Party (Christian Democrats)](https://electionsarchive.com/id/01a13bdd-fee2-723d-9a74-75b9790919a6.md) group in the European Parliament
- [European Conservatives and Reformists Group](https://electionsarchive.com/id/20efc1d5-9476-5b44-a8fc-f54529f5cbae.md) group in the European Parliament
- [European Democratic Group](https://electionsarchive.com/id/59885246-baf5-5bcd-b07d-34eedfcea04f.md) group in the European Parliament

## Elections

| Year | Election | Contests | Seats |
| --- | --- | --- | --- |
| 2024 | [2024 United Kingdom general election](https://electionsarchive.com/gb/2024-07-04-general.md) | 17 | 1 |
| 2023 | [2023 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/2023-05-18-local.md) | 72 | 54 |
| 2022 | [2022 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/2022-05-05-general.md) | 18 | 9 |
| 2019 | [2019 United Kingdom general election](https://electionsarchive.com/gb/2019-12-12-general.md) | 16 |  |
| 2019 | [2019 European Parliament election](https://electionsarchive.com/eu/2019-05-23-european-parliament.md) | 1 |  |
| 2019 | [2019 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/2019-05-02-local.md) | 72 | 74 |
| 2018 | [By-elections, May 3, 2018](https://electionsarchive.com/gb/2018-05-03-by-election.md) | 1 |  |
| 2017 | [2017 United Kingdom general election](https://electionsarchive.com/gb/2017-06-08-general.md) | 14 |  |
| 2017 | [2017 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/2017-03-02-general.md) | 18 | 10 |
| 2016 | [2016 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/2016-05-05-general.md) | 18 | 16 |
| 2015 | [2015 United Kingdom general election](https://electionsarchive.com/gb/2015-05-07-general.md) | 15 | 2 |
| 2014 | [2014 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/2014-05-22-local.md) | 75 | 88 |
| 2014 | [2014 European Parliament election](https://electionsarchive.com/eu/2014-05-22-european-parliament.md) | 1 | 1 |
| 2011 | [By-elections, June 9, 2011](https://electionsarchive.com/gb/2011-06-09-by-election.md) | 1 |  |
| 2011 | [2011 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/2011-05-05-local.md) | 78 | 78 |
| 2011 | [2011 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/2011-05-05-general.md) | 17 | 16 |
| 2009 | [2009 European Parliament election](https://electionsarchive.com/eu/2009-06-04-european-parliament.md) | 1 | 1 |
| 2007 | [2007 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/2007-03-07-general.md) | 18 | 18 |
| 2005 | [2005 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/2005-05-05-local.md) | 86 | 107 |
| 2005 | [2005 United Kingdom general election](https://electionsarchive.com/gb/2005-05-05-general.md) | 18 | 1 |
| 2004 | [2004 European Parliament election](https://electionsarchive.com/eu/2004-06-10-european-parliament.md) | 1 | 1 |
| 2003 | [2003 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/2003-11-26-general.md) | 18 | 27 |
| 2001 | [2001 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/2001-06-07-local.md) | 79 | 133 |
| 2001 | [2001 United Kingdom general election](https://electionsarchive.com/gb/2001-06-07-general.md) | 17 | 6 |
| 2000 | [By-elections, September 21, 2000](https://electionsarchive.com/gb/2000-09-21-by-election.md) | 1 |  |
| 1999 | [1999 European Parliament election](https://electionsarchive.com/eu/1999-06-10-european-parliament.md) | 1 | 1 |
| 1998 | [1998 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/1998-06-25-general.md) | 18 | 28 |
| 1997 | [1997 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1997-05-21-local.md) | 84 | 173 |
| 1997 | [1997 United Kingdom general election](https://electionsarchive.com/gb/1997-05-01-general.md) | 16 | 10 |
| 1996 | [1996 Northern Ireland Forum election](https://electionsarchive.com/gb/northern-ireland/1996-05-30-forum.md) | 19 | 30 |
| 1995 | [By-elections, June 15, 1995](https://electionsarchive.com/gb/1995-06-15-by-election.md) | 1 |  |
| 1994 | [1994 European Parliament election](https://electionsarchive.com/eu/1994-06-09-european-parliament.md) | 1 | 1 |
| 1993 | [1993 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1993-05-19-local.md) | 87 | 187 |
| 1992 | [1992 United Kingdom general election](https://electionsarchive.com/gb/1992-04-09-general.md) | 13 | 9 |
| 1990 | [By-elections, May 17, 1990](https://electionsarchive.com/gb/1990-05-17-by-election.md) | 1 | 1 |
| 1989 | [1989 European Parliament election](https://electionsarchive.com/eu/1989-06-15-european-parliament.md) | 1 | 1 |
| 1989 | [1989 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1989-05-17-local.md) | 82 | 174 |
| 1987 | [1987 United Kingdom general election](https://electionsarchive.com/gb/1987-06-11-general.md) | 12 | 9 |
| 1986 | [By-elections, January 23, 1986](https://electionsarchive.com/gb/1986-01-23-by-election.md) | 11 | 10 |
| 1985 | [1985 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1985-05-15-local.md) | 79 | 162 |
| 1984 | [1984 European Parliament election](https://electionsarchive.com/eu/1984-06-14-european-parliament.md) | 1 | 1 |
| 1983 | [1983 United Kingdom general election](https://electionsarchive.com/gb/1983-06-09-general.md) | 16 | 11 |
| 1982 | [1982 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/1982-10-20-general.md) | 12 | 26 |
| 1982 | [By-elections, March 4, 1982](https://electionsarchive.com/gb/1982-03-04-by-election.md) | 1 | 1 |
| 1981 | [By-elections, August 20, 1981](https://electionsarchive.com/gb/1981-08-20-by-election.md) | 1 |  |
| 1981 | [1981 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1981-05-20-local.md) | 72 | 110 |
| 1981 | [By-elections, April 9, 1981](https://electionsarchive.com/gb/1981-04-09-by-election.md) | 1 |  |
| 1979 | [1979 European Parliament election](https://electionsarchive.com/eu/1979-06-07-european-parliament.md) | 1 | 1 |
| 1979 | [1979 United Kingdom general election](https://electionsarchive.com/gb/1979-05-03-general.md) | 11 | 5 |
| 1977 | [1977 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1977-05-18-local.md) | 63 | 120 |
| 1975 | [1975 Northern Ireland Constitutional Convention election](https://electionsarchive.com/gb/northern-ireland/1975-05-01-convention.md) | 12 | 19 |
| 1974 | [October 1974 United Kingdom general election](https://electionsarchive.com/gb/1974-10-10-general.md) | 7 | 6 |
| 1974 | [February 1974 United Kingdom general election](https://electionsarchive.com/gb/1974-02-28-general.md) | 7 | 7 |
| 1973 | [1973 Northern Ireland Assembly election](https://electionsarchive.com/gb/northern-ireland/1973-06-28-general.md) | 12 | 32 |
| 1973 | [1973 Northern Ireland local elections](https://electionsarchive.com/gb/northern-ireland/1973-05-30-local.md) | 31 | 69 |
| 1970 | [Belfast St. Anne's by-election, November 12, 1970](https://electionsarchive.com/gb/northern-ireland/1970-11-12-by-election.md) | 1 | 1 |
| 1970 | [1970 United Kingdom general election](https://electionsarchive.com/gb/1970-06-18-general.md) | 12 | 8 |
| 1970 | [Northern Ireland House of Commons by-elections, April 16, 1970](https://electionsarchive.com/gb/northern-ireland/1970-04-16-by-election.md) | 2 |  |
| 1969 | [By-elections, April 17, 1969](https://electionsarchive.com/gb/1969-04-17-by-election.md) | 1 |  |
| 1969 | [1969 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1969-02-24-general.md) | 44 | 36 |
| 1968 | [South Antrim by-election, November 6, 1968](https://electionsarchive.com/gb/northern-ireland/1968-11-06-by-election.md) | 1 | 1 |
| 1968 | [City of Londonderry by-election, May 16, 1968](https://electionsarchive.com/gb/northern-ireland/1968-05-16-by-election.md) | 1 | 1 |
| 1968 | [Lisnaskea by-election, March 22, 1968](https://electionsarchive.com/gb/northern-ireland/1968-03-22-by-election.md) | 1 | 1 |
| 1967 | [South Down by-election, May 25, 1967](https://electionsarchive.com/gb/northern-ireland/1967-05-25-by-election.md) | 1 |  |
| 1966 | [Queen's University of Belfast by-election, November 23, 1966](https://electionsarchive.com/gb/northern-ireland/1966-11-23-by-election.md) | 1 | 1 |
| 1966 | [1966 United Kingdom general election](https://electionsarchive.com/gb/1966-03-31-general.md) | 12 | 11 |
| 1965 | [1965 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1965-11-25-general.md) | 40 | 36 |
| 1965 | [West Down by-election, June 19, 1965](https://electionsarchive.com/gb/northern-ireland/1965-06-19-by-election.md) | 1 | 1 |
| 1964 | [Mid Down by-election, December 3, 1964](https://electionsarchive.com/gb/northern-ireland/1964-12-03-by-election.md) | 1 | 1 |
| 1964 | [1964 United Kingdom general election](https://electionsarchive.com/gb/1964-10-15-general.md) | 12 | 12 |
| 1964 | [East Tyrone by-election, June 30, 1964](https://electionsarchive.com/gb/northern-ireland/1964-06-30-by-election.md) | 1 |  |
| 1964 | [Iveagh by-election, May 9, 1964](https://electionsarchive.com/gb/northern-ireland/1964-05-09-by-election.md) | 1 | 1 |
| 1963 | [By-elections, October 22, 1963](https://electionsarchive.com/gb/1963-10-22-by-election.md) | 1 | 1 |
| 1962 | [Belfast Cromac by-election, December 6, 1962](https://electionsarchive.com/gb/northern-ireland/1962-12-06-by-election.md) | 1 | 1 |
| 1962 | [1962 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1962-05-31-general.md) | 43 | 34 |
| 1961 | [Queen's University of Belfast by-election, November 22, 1961](https://electionsarchive.com/gb/northern-ireland/1961-11-22-by-election.md) | 1 |  |
| 1961 | [Belfast Bloomfield by-election, April 20, 1961](https://electionsarchive.com/gb/northern-ireland/1961-04-20-by-election.md) | 1 | 1 |
| 1960 | [North Londonderry by-election, November 29, 1960](https://electionsarchive.com/gb/northern-ireland/1960-11-29-by-election.md) | 1 | 1 |
| 1960 | [South Londonderry by-election, July 9, 1960](https://electionsarchive.com/gb/northern-ireland/1960-07-09-by-election.md) | 1 | 1 |
| 1960 | [Belfast Shankill by-election, February 16, 1960](https://electionsarchive.com/gb/northern-ireland/1960-02-16-by-election.md) | 1 | 1 |
| 1960 | [Larne by-election, February 5, 1960](https://electionsarchive.com/gb/northern-ireland/1960-02-05-by-election.md) | 1 | 1 |
| 1959 | [1959 United Kingdom general election](https://electionsarchive.com/gb/1959-10-08-general.md) | 12 | 12 |
| 1959 | [Belfast Clifton by-election, May 28, 1959](https://electionsarchive.com/gb/northern-ireland/1959-05-28-by-election.md) | 1 | 1 |
| 1959 | [By-elections, March 19, 1959](https://electionsarchive.com/gb/1959-03-19-by-election.md) | 1 | 1 |
| 1959 | [West Down by-election, March 5, 1959](https://electionsarchive.com/gb/northern-ireland/1959-03-05-by-election.md) | 1 | 1 |
| 1958 | [1958 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1958-03-20-general.md) | 44 | 37 |
| 1956 | [Belfast Duncairn by-election, December 4, 1956](https://electionsarchive.com/gb/northern-ireland/1956-12-04-by-election.md) | 1 | 1 |
| 1956 | [Belfast Windsor by-election, November 23, 1956](https://electionsarchive.com/gb/northern-ireland/1956-11-23-by-election.md) | 1 | 1 |
| 1955 | [Belfast Woodvale by-election, November 15, 1955](https://electionsarchive.com/gb/northern-ireland/1955-11-15-by-election.md) | 1 | 1 |
| 1955 | [Central Armagh by-election, October 15, 1955](https://electionsarchive.com/gb/northern-ireland/1955-10-15-by-election.md) | 1 | 1 |
| 1955 | [By-elections, August 11, 1955](https://electionsarchive.com/gb/1955-08-11-by-election.md) | 1 |  |
| 1955 | [1955 United Kingdom general election](https://electionsarchive.com/gb/1955-05-26-general.md) | 12 | 10 |
| 1954 | [By-elections, November 20, 1954](https://electionsarchive.com/gb/1954-11-20-by-election.md) | 1 | 1 |
| 1954 | [Enniskillen by-election, May 8, 1954](https://electionsarchive.com/gb/northern-ireland/1954-05-08-by-election.md) | 1 | 1 |
| 1953 | [1953 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1953-10-22-general.md) | 41 | 38 |
| 1953 | [By-elections, April 15, 1953](https://electionsarchive.com/gb/1953-04-15-by-election.md) | 1 | 1 |
| 1952 | [By-elections, November 4, 1952](https://electionsarchive.com/gb/1952-11-04-by-election.md) | 1 | 1 |
| 1952 | [By-elections, October 27, 1952](https://electionsarchive.com/gb/1952-10-27-by-election.md) | 1 | 1 |
| 1951 | [South Antrim by-election, December 10, 1951](https://electionsarchive.com/gb/northern-ireland/1951-12-10-by-election.md) | 1 | 1 |
| 1951 | [1951 United Kingdom general election](https://electionsarchive.com/gb/1951-10-25-general.md) | 12 | 9 |
| 1951 | [City of Londonderry by-election, June 1, 1951](https://electionsarchive.com/gb/northern-ireland/1951-06-01-by-election.md) | 1 | 1 |
| 1951 | [By-elections, May 19, 1951](https://electionsarchive.com/gb/1951-05-19-by-election.md) | 1 | 1 |
| 1951 | [Antrim by-election, February 2, 1951](https://electionsarchive.com/gb/northern-ireland/1951-02-02-by-election.md) | 1 | 1 |
| 1950 | [By-elections, November 29, 1950](https://electionsarchive.com/gb/1950-11-29-by-election.md) | 1 | 1 |
| 1950 | [Belfast Bloomfield by-election, October 31, 1950](https://electionsarchive.com/gb/northern-ireland/1950-10-31-by-election.md) | 1 | 1 |
| 1950 | [Carrick by-election, June 20, 1950](https://electionsarchive.com/gb/northern-ireland/1950-06-20-by-election.md) | 1 | 1 |
| 1950 | [Belfast Woodvale by-election, April 4, 1950](https://electionsarchive.com/gb/northern-ireland/1950-04-04-by-election.md) | 1 | 1 |
| 1950 | [1950 United Kingdom general election](https://electionsarchive.com/gb/1950-02-23-general.md) | 12 | 10 |
| 1949 | [Belfast Duncairn by-election, November 29, 1949](https://electionsarchive.com/gb/northern-ireland/1949-11-29-by-election.md) | 1 | 1 |
| 1949 | [Queen's University of Belfast by-election, November 15, 1949](https://electionsarchive.com/gb/northern-ireland/1949-11-15-by-election.md) | 1 | 1 |
| 1949 | [Enniskillen by-election, October 24, 1949](https://electionsarchive.com/gb/northern-ireland/1949-10-24-by-election.md) | 1 | 1 |
| 1949 | [1949 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1949-02-10-general.md) | 43 | 37 |
| 1948 | [Queen's University of Belfast by-election, April 20, 1948](https://electionsarchive.com/gb/northern-ireland/1948-04-20-by-election.md) | 1 | 1 |
| 1948 | [By-elections, March 5, 1948](https://electionsarchive.com/gb/1948-03-05-by-election.md) | 1 | 1 |
| 1947 | [City of Londonderry by-election, June 27, 1947](https://electionsarchive.com/gb/northern-ireland/1947-06-27-by-election.md) | 1 | 1 |
| 1946 | [Bann Side by-election, November 7, 1946](https://electionsarchive.com/gb/northern-ireland/1946-11-07-by-election.md) | 1 | 1 |
| 1946 | [By-elections, June 6, 1946](https://electionsarchive.com/gb/1946-06-06-by-election.md) | 1 | 1 |
| 1945 | [North Antrim by-election, October 15, 1945](https://electionsarchive.com/gb/northern-ireland/1945-10-15-by-election.md) | 1 | 1 |
| 1945 | [1945 United Kingdom general election](https://electionsarchive.com/gb/1945-07-05-general.md) | 10 | 9 |
| 1945 | [1945 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1945-06-14-general.md) | 38 | 33 |
| 1945 | [Northern Ireland House of Commons by-elections, April 19, 1945](https://electionsarchive.com/gb/northern-ireland/1945-04-19-by-election.md) | 2 | 2 |
| 1945 | [South Tyrone by-election, April 12, 1945](https://electionsarchive.com/gb/northern-ireland/1945-04-12-by-election.md) | 1 | 1 |
| 1944 | [Queen's University of Belfast by-election, December 13, 1944](https://electionsarchive.com/gb/northern-ireland/1944-12-13-by-election.md) | 1 | 1 |
| 1943 | [Carrick by-election, August 26, 1943](https://electionsarchive.com/gb/northern-ireland/1943-08-26-by-election.md) | 1 | 1 |
| 1943 | [North Tyrone by-election, August 11, 1943](https://electionsarchive.com/gb/northern-ireland/1943-08-11-by-election.md) | 1 | 1 |
| 1943 | [Queen's University of Belfast by-election, July 2, 1943](https://electionsarchive.com/gb/northern-ireland/1943-07-02-by-election.md) | 1 | 1 |
| 1943 | [By-elections, February 11, 1943](https://electionsarchive.com/gb/1943-02-11-by-election.md) | 1 | 1 |
| 1943 | [By-elections, February 9, 1943](https://electionsarchive.com/gb/1943-02-09-by-election.md) | 1 |  |
| 1942 | [Queen's University of Belfast by-election, October 19, 1942](https://electionsarchive.com/gb/northern-ireland/1942-10-19-by-election.md) | 1 | 1 |
| 1941 | [Belfast Willowfield by-election, December 3, 1941](https://electionsarchive.com/gb/northern-ireland/1941-12-03-by-election.md) | 1 |  |
| 1941 | [North Down by-election, March 27, 1941](https://electionsarchive.com/gb/northern-ireland/1941-03-27-by-election.md) | 1 |  |
| 1941 | [Central Armagh by-election, March 15, 1941](https://electionsarchive.com/gb/northern-ireland/1941-03-15-by-election.md) | 1 | 1 |
| 1940 | [By-elections, November 2, 1940](https://electionsarchive.com/gb/1940-11-02-by-election.md) | 1 | 1 |
| 1940 | [By-elections, February 8, 1940](https://electionsarchive.com/gb/1940-02-08-by-election.md) | 1 | 1 |
| 1939 | [Bann Side by-election, November 10, 1939](https://electionsarchive.com/gb/northern-ireland/1939-11-10-by-election.md) | 1 | 1 |
| 1939 | [By-elections, May 10, 1939](https://electionsarchive.com/gb/1939-05-10-by-election.md) | 1 | 1 |
| 1939 | [City of Londonderry by-election, April 27, 1939](https://electionsarchive.com/gb/northern-ireland/1939-04-27-by-election.md) | 1 | 1 |
| 1938 | [Queen's University of Belfast by-election, December 5, 1938](https://electionsarchive.com/gb/northern-ireland/1938-12-05-by-election.md) | 1 | 1 |
| 1938 | [Mid Armagh by-election, September 29, 1938](https://electionsarchive.com/gb/northern-ireland/1938-09-29-by-election.md) | 1 | 1 |
| 1938 | [1938 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1938-02-09-general.md) | 40 | 39 |
| 1937 | [Larne by-election, May 27, 1937](https://electionsarchive.com/gb/northern-ireland/1937-05-27-by-election.md) | 1 | 1 |
| 1937 | [Belfast Windsor by-election, May 15, 1937](https://electionsarchive.com/gb/northern-ireland/1937-05-15-by-election.md) | 1 | 1 |
| 1937 | [Belfast Ballynafeigh by-election, April 2, 1937](https://electionsarchive.com/gb/northern-ireland/1937-04-02-by-election.md) | 1 | 1 |
| 1935 | [1935 United Kingdom general election](https://electionsarchive.com/gb/1935-11-14-general.md) | 10 | 11 |
| 1935 | [Queen's University of Belfast by-election, March 22, 1935](https://electionsarchive.com/gb/northern-ireland/1935-03-22-by-election.md) | 1 | 1 |
| 1933 | [1933 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1933-11-30-general.md) | 39 | 36 |
| 1933 | [South Londonderry by-election, March 15, 1933](https://electionsarchive.com/gb/northern-ireland/1933-03-15-by-election.md) | 1 | 1 |
| 1931 | [1931 United Kingdom general election](https://electionsarchive.com/gb/1931-10-27-general.md) | 10 | 11 |
| 1930 | [North Tyrone by-election, November 10, 1930](https://electionsarchive.com/gb/northern-ireland/1930-11-10-by-election.md) | 1 | 1 |
| 1929 | [1929 United Kingdom general election](https://electionsarchive.com/gb/1929-05-30-general.md) | 9 | 11 |
| 1929 | [1929 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1929-05-22-general.md) | 40 | 37 |
| 1929 | [By-elections, January 29, 1929](https://electionsarchive.com/gb/1929-01-29-by-election.md) | 1 | 1 |
| 1925 | [Armagh by-election, November 25, 1925](https://electionsarchive.com/gb/northern-ireland/1925-11-25-by-election.md) | 1 | 1 |
| 1925 | [Belfast South by-election, November 6, 1925](https://electionsarchive.com/gb/northern-ireland/1925-11-06-by-election.md) | 1 | 1 |
| 1925 | [1925 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1925-04-03-general.md) | 10 | 32 |
| 1924 | [1924 United Kingdom general election](https://electionsarchive.com/gb/1924-10-29-general.md) | 10 | 13 |
| 1923 | [1923 United Kingdom general election](https://electionsarchive.com/gb/1923-12-06-general.md) | 10 | 11 |
| 1923 | [Belfast West by-election, May 2, 1923](https://electionsarchive.com/gb/northern-ireland/1923-05-02-by-election.md) | 1 |  |
| 1922 | [1922 United Kingdom general election](https://electionsarchive.com/gb/1922-11-15-general.md) | 10 | 11 |
| 1922 | [By-elections, July 21, 1922](https://electionsarchive.com/gb/1922-07-21-by-election.md) | 1 | 1 |
| 1922 | [By-elections, June 2, 1922](https://electionsarchive.com/gb/1922-06-02-by-election.md) | 1 | 1 |
| 1922 | [By-elections, February 21, 1922](https://electionsarchive.com/gb/1922-02-21-by-election.md) | 1 | 1 |
| 1922 | [By-elections, February 17, 1922](https://electionsarchive.com/gb/1922-02-17-by-election.md) | 1 | 1 |
| 1922 | [By-elections, January 18, 1922](https://electionsarchive.com/gb/1922-01-18-by-election.md) | 1 | 1 |
| 1921 | [By-elections, August 29, 1921](https://electionsarchive.com/gb/1921-08-29-by-election.md) | 1 | 1 |
| 1921 | [By-elections, July 5, 1921](https://electionsarchive.com/gb/1921-07-05-by-election.md) | 1 | 1 |
| 1921 | [By-elections, July 2, 1921](https://electionsarchive.com/gb/1921-07-02-by-election.md) | 1 | 1 |
| 1921 | [By-elections, June 23, 1921](https://electionsarchive.com/gb/1921-06-23-by-election.md) | 3 | 3 |
| 1921 | [1921 Northern Ireland general election](https://electionsarchive.com/gb/northern-ireland/1921-05-24-general.md) | 10 | 40 |
| 1918 | [1918 United Kingdom general election](https://electionsarchive.com/gb/1918-12-14-general.md) | 1 | 1 |

Also available as HTML at https://electionsarchive.com/parties/gb/ulster-unionist-party and JSON at https://electionsarchive.com/parties/gb/ulster-unionist-party.json.