Results for the UK general election on 7 May 2015 Northern Ireland - Elections won by Democratic Unionist Party
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Majority |
| Belfast East | ROBINSON, Gavin | 63,157 | 62.8% | 19,575 | 49.3% | 16.5% | 2,597 |
| Belfast North | DODDS, Nigel | 68,553 | 59.2% | 19,096 | 47.0% | 7.0% | 5,326 |
| East Antrim | WILSON, Sammy | 62,811 | 53.3% | 12,103 | 36.1% | -9.7% | 5,795 |
| East Londonderry | CAMPBELL, Gregory | 66,926 | 51.9% | 14,663 | 42.2% | 7.6% | 7,804 |
| Lagan Valley | DONALDSON, Jeffrey | 71,152 | 55.9% | 19,055 | 47.9% | -1.9% | 13,000 |
| North Antrim | PAISLEY, Ian | 75,876 | 55.2% | 18,107 | 43.2% | -3.2% | 11,546 |
| Strangford | SHANNON, Jim | 64,289 | 52.8% | 15,053 | 44.4% | -1.5% | 10,185 |
| Upper Bann | SIMPSON, David | 80,060 | 59.0% | 15,430 | 32.7% | -1.2% | 2,264 |
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.