An election to the 57th Parliament of the United Kingdom for the constituency area of Delyn, held as part of the general election on 8 June 2017.
Labour hold by David Hanson with a majority of 4,240 - 10.8% - on a turnout of 72.9%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| HANSON, David | Lab | 20,573 | 52.2% | 11.6% |
| WRIGHT, Matt | Con | 16,333 | 41.4% | 8.7% |
| ROWLINSON, Paul | PC | 1,481 | 3.8% | -1.1% |
| RIPPETH, Tom | LD | 1,031 | 2.6% | -1.1% |
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 54,090, having a valid vote count of 39,418 and an invalid vote count of 69.
Result declared at 02:07 on 9 June 2017.