Results for a UK general election on 6 May 2010 Northern Ireland - by party
A general election to the 55th Parliament of the United Kingdom with an electorate of 45,597,461, having 29,687,604 valid votes and 81,879 invalid votes.
Read the House of Commons Library briefing.
Registered political parties nominating candidates standing in the general election on 6 May 2010. 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 | 168,216 | 31.9% | 8 |
| Sinn Féin | 17 | 171,942 | 32.6% | 5 |
| Social Democratic & Labour Party | 18 | 110,970 | 21.1% | 3 |
| Alliance | 18 | 42,762 | 8.1% | 1 |
| Traditional Unionist Voice | 10 | 26,300 | 5.0% | 0 |
| Green Party Northern Ireland | 4 | 3,542 | 0.7% | 0 |
| People Before Profit Alliance | 1 | 2,936 | 0.6% | 0 |