An election to the 56th Parliament of the United Kingdom for the constituency area of Blyth Valley, held as part of the general election on 7 May 2015.
Labour hold by Ronnie Campbell with a majority of 9,229 - 24.0% - on a turnout of 62.8%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| CAMPBELL, Ronnie | Lab | 17,813 | 46.3% | 1.8% |
| ELLIOTT, Barry | UKIP | 8,584 | 22.3% | 18.0% |
| MUNRO, Greg | Con | 8,346 | 21.7% | 5.1% |
| LATHAM, Philip | LD | 2,265 | 5.9% | -21.3% |
| FURNESS, Dawn | Green | 1,453 | 3.8% | - |
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 61,247, having a valid vote count of 38,461 and an invalid vote count of 41.
Result declared at 13:00 on 8 May 2015.