UK general election on 6 May 2010 Elections won by Sinn Féin
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.
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Majority |
| Belfast West | ADAMS, Gerry | 59,522 | 54.0% | 22,840 | 71.1% | 2.5% | 17,579 |
| Fermanagh and South Tyrone | GILDERNEW, Michelle | 67,908 | 68.9% | 21,304 | 45.5% | 7.3% | 4 |
| Mid Ulster | MCGUINNESS, Martin | 64,594 | 63.2% | 21,239 | 52.0% | 4.4% | 15,363 |
| Newry and Armagh | MURPHY, Conor | 74,308 | 60.4% | 18,857 | 42.0% | 0.6% | 8,331 |
| West Tyrone | DOHERTY, Pat | 61,148 | 61.0% | 18,050 | 48.4% | 9.5% | 10,685 |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.