An election to the 56th Parliament of the United Kingdom for the constituency area of Preseli Pembrokeshire, held as part of the general election on 7 May 2015.
Conservative hold by Stephen Crabb with a majority of 4,969 - 12.3% - on a turnout of 70.8%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| CRABB, Stephen | Con | 16,383 | 40.4% | -2.4% |
| MILLER, Paul | Lab | 11,414 | 28.1% | -3.0% |
| LILLYMAN, Howard | UKIP | 4,257 | 10.5% | 8.2% |
| OVERTON, Chris | ISWSL | 3,729 | 9.2% | - |
| OSMOND, John | PC | 2,518 | 6.2% | -3.0% |
| BRYANT, Frances | Green | 1,452 | 3.6% | - |
| TREGONING, Nick | LD | 780 | 1.9% | -12.6% |
| MAILE, Rodney | NSOW | 23 | 0.1% | - |
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 57,291, having a valid vote count of 40,556 and an invalid vote count of 64.
Result declared at 04:39 on 8 May 2015.