Results for the UK general election on 7 May 2015 Northern Ireland - by party
A general election to the 56th Parliament of the United Kingdom with an electorate of 46,354,197, having 30,697,525 valid votes and 102,639 invalid votes.
Read the House of Commons Library briefing.
Registered political parties nominating candidates standing in the general election on 7 May 2015. This list does not include candidates standing as independents or the candidate standing as House of Commons Speaker.
| Party | Constituencies contested | Votes | Vote share | Constituencies won |
| Democratic Unionist Party | 16 | 184,260 | 26.4% | 8 |
| Sinn Féin | 18 | 176,232 | 25.2% | 4 |
| Social Democratic & Labour Party | 18 | 99,809 | 14.3% | 3 |
| Ulster Unionist Party | 15 | 114,935 | 16.4% | 2 |
| Alliance | 18 | 61,556 | 8.8% | 0 |
| UK Independence Party | 10 | 18,324 | 2.6% | 0 |
| Traditional Unionist Voice | 7 | 16,538 | 2.4% | 0 |
| Conservative | 16 | 9,055 | 1.3% | 0 |
| Green Party Northern Ireland | 5 | 6,822 | 1.0% | 0 |
| People Before Profit Alliance | 1 | 6,798 | 1.0% | 0 |
| The Workers' Party | 5 | 2,724 | 0.4% | 0 |
| Cannabis Is Safer Than Alcohol | 4 | 1,853 | 0.3% | 0 |