UK general election on 6 May 2010 Elections won by Democratic Unionist 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.
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Majority |
| Belfast North | DODDS, Nigel | 65,504 | 56.5% | 14,812 | 40.0% | -2.9% | 2,224 |
| East Antrim | WILSON, Sammy | 60,204 | 50.7% | 13,993 | 45.9% | -1.0% | 6,770 |
| East Londonderry | CAMPBELL, Gregory | 63,220 | 55.3% | 12,097 | 34.6% | -6.3% | 5,355 |
| Lagan Valley | DONALDSON, Jeffrey | 65,257 | 56.0% | 18,199 | 49.8% | -8.5% | 10,486 |
| North Antrim | PAISLEY, Ian | 73,338 | 57.8% | 19,672 | 46.4% | -10.4% | 12,558 |
| South Antrim | MCCREA, William | 63,054 | 53.9% | 11,536 | 33.9% | -6.4% | 1,183 |
| Strangford | SHANNON, Jim | 60,539 | 53.7% | 14,926 | 45.9% | -8.8% | 5,876 |
| Upper Bann | SIMPSON, David | 74,732 | 55.4% | 14,000 | 33.8% | -3.7% | 3,361 |
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.