An election to the 56th Parliament of the United Kingdom for the constituency area of North Down, held as part of the general election on 7 May 2015.
Independent hold by Sylvia Hermon with a majority of 9,202 - 25.6% - on a turnout of 56.0%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| HERMON, Sylvia | Ind | 17,689 | 49.2% | - |
| EASTON, Alex | DUP | 8,487 | 23.6% | - |
| MUIR, Andrew | APNI | 3,086 | 8.6% | 3.0% |
| AGNEW, Steven | Green | 1,958 | 5.4% | 2.3% |
| BROTHERSTON, Mark | Con | 1,593 | 4.4% | - |
| LAVERY, Jonny | UKIP | 1,482 | 4.1% | - |
| CUDWORTH, William | TUV | 686 | 1.9% | -3.0% |
| WOOLLEY, Tom | SDLP | 355 | 1.0% | -1.0% |
| DONNELLY, Glenn | CSA | 338 | 0.9% | - |
| MCCARTNEY, Therese | SF | 273 | 0.8% | 0.0% |
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.
An electorate of 64,207, having a valid vote count of 35,947 and an invalid vote count of 97.
Result declared at 02:06 on 8 May 2015.