An election to the 57th Parliament of the United Kingdom for the constituency area of Wrexham, held as part of the general election on 8 June 2017.
Labour hold by Ian Lucas with a majority of 1,832 - 5.2% - on a turnout of 70.4%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| LUCAS, Ian | Lab | 17,153 | 48.9% | 11.7% |
| MARK, Atkinson | Con | 15,321 | 43.7% | 12.0% |
| HARPER, Carrie | PC | 1,753 | 5.0% | -2.6% |
| O'TOOLE, Carole | LD | 865 | 2.5% | -2.8% |
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 49,881, having a valid vote count of 35,092 and an invalid vote count of 68.
Result declared at 01:10 on 9 June 2017.