An election to the 56th Parliament of the United Kingdom for the constituency area of Southport, held as part of the general election on 7 May 2015.
Liberal Democrats hold by John Pugh with a majority of 1,322 - 3.0% - on a turnout of 65.5%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| PUGH, John | LD | 13,652 | 31.0% | -18.7% |
| MOORE, Damien | Con | 12,330 | 28.0% | -7.9% |
| SAVAGE, Liz | Lab | 8,468 | 19.2% | 9.8% |
| DURRANCE, Terry | UKIP | 7,429 | 16.8% | 11.7% |
| RANKIN, Laurence | Green | 1,230 | 2.8% | - |
| BARLOW, Jacqueline | TSP | 992 | 2.2% | - |
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 67,326, having a valid vote count of 44,101 and an invalid vote count of 171.
Result declared at 04:41 on 8 May 2015.