An election to the 56th Parliament of the United Kingdom for the constituency area of Preston, held as part of the general election on 7 May 2015.
Labour hold by Mark Hendrick with a majority of 12,067 - 36.1% - on a turnout of 55.8%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| HENDRICK, Mark | Lab / Co-op | 18,755 | 56.0% | 7.8% |
| HOLDEN, Richard | Con | 6,688 | 20.0% | -1.7% |
| BARKER, James | UKIP | 5,139 | 15.4% | 10.9% |
| CHRISTIE, Gemma | Green | 1,643 | 4.9% | - |
| BARTON, Jo | LD | 1,244 | 3.7% | -20.7% |
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 59,981, having a valid vote count of 33,469 and an invalid vote count of 140.
Result declared at 04:48 on 8 May 2015.