An election to the 56th Parliament of the United Kingdom for the constituency area of Blackpool South, held as part of the general election on 7 May 2015.
Labour hold by Gordon Marsden with a majority of 2,585 - 8.0% - on a turnout of 56.5%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| MARSDEN, Gordon | Lab | 13,548 | 41.8% | 0.7% |
| ANTHONY, Peter | Con | 10,963 | 33.8% | -2.0% |
| WOOD, Peter | UKIP | 5,613 | 17.3% | 13.5% |
| ROYLE, Duncan | Green | 841 | 2.6% | - |
| GREENE, Bill | LD | 743 | 2.3% | -12.2% |
| HIGGINS, Andy | Ind | 655 | 2.0% | - |
| CHARD, Lawrence | Ind | 73 | 0.2% | - |
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 57,411, having a valid vote count of 32,436 and an invalid vote count of 192.
Result declared at 05:05 on 8 May 2015.