An election to the 56th Parliament of the United Kingdom for the constituency area of Ruislip, Northwood and Pinner, held as part of the general election on 7 May 2015.
Conservative hold by Nick Hurd with a majority of 20,224 - 39.5% - on a turnout of 70.0%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| HURD, Nick | Con | 30,521 | 59.6% | 2.1% |
| BORIO, Michael | Lab | 10,297 | 20.1% | 0.6% |
| BARRY, Gerard | UKIP | 5,598 | 10.9% | 8.2% |
| DIXON, Joshua | LD | 2,537 | 5.0% | -11.7% |
| PILLAI, Karen | Green | 1,801 | 3.5% | 2.0% |
| KENNEDY, Wally | TUSC | 302 | 0.6% | - |
| YOGALINGAM, Sockalingam | NLP | 166 | 0.3% | - |
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 73,216, having a valid vote count of 51,222 and an invalid vote count of 159.
Result declared at 06:10 on 8 May 2015.