Results for the UK general election on 7 May 2015 Northern Ireland - by vote share
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.
| Ranking | Constituency | Winning candidate | Winning party | Vote share |
| 1 | Belfast West | MASKEY, Paul | SF | 54.2% |
| 2 | Belfast East | ROBINSON, Gavin | DUP | 49.3% |
| 3 | North Down | HERMON, Sylvia | Ind | 49.2% |
| 4 | Mid Ulster | MOLLOY, Francie | SF | 48.7% |
| 5 | Foyle | DURKAN, Mark | SDLP | 47.9% |
| 6 | Lagan Valley | DONALDSON, Jeffrey | DUP | 47.9% |
| 7 | Belfast North | DODDS, Nigel | DUP | 47.0% |
| 8 | Fermanagh and South Tyrone | ELLIOTT, Tom | UUP | 46.4% |
| 9 | Strangford | SHANNON, Jim | DUP | 44.4% |
| 10 | West Tyrone | DOHERTY, Pat | SF | 43.5% |
| 11 | North Antrim | PAISLEY, Ian | DUP | 43.2% |
| 12 | South Down | RITCHIE, Margaret | SDLP | 42.3% |
| 13 | East Londonderry | CAMPBELL, Gregory | DUP | 42.2% |
| 14 | Newry and Armagh | BRADY, Mickey | SF | 41.1% |
| 15 | East Antrim | WILSON, Sammy | DUP | 36.1% |
| 16 | South Antrim | KINAHAN, Danny | UUP | 32.7% |
| 17 | Upper Bann | SIMPSON, David | DUP | 32.7% |
| 18 | Belfast South | MCDONNELL, Alasdair | SDLP | 24.5% |