An election to the 57th Parliament of the United Kingdom for the constituency area of Southport, held as part of the general election on 8 June 2017.
Conservative gain from Liberal Democrats by Damien Moore with a majority of 2,914 - 6.1% - on a turnout of 69.1%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| MOORE, Damien | Con | 18,541 | 38.7% | 10.7% |
| SAVAGE, Liz | Lab | 15,627 | 32.6% | 13.4% |
| MCGUIRE, Sue | LD | 12,661 | 26.4% | -4.6% |
| DURRANCE, Terry | UKIP | 1,127 | 2.4% | -14.5% |
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 69,400, having a valid vote count of 47,956 and an invalid vote count of 63.
Result declared at 02:29 on 9 June 2017.