An election to the 57th Parliament of the United Kingdom for the constituency area of Halifax, held as part of the general election on 8 June 2017.
Labour hold by Holly Lynch with a majority of 5,376 - 11.1% - on a turnout of 67.8%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| LYNCH, Holly | Lab | 25,507 | 52.8% | 12.8% |
| PEARSON, Chris | Con | 20,131 | 41.7% | 2.7% |
| WEEDON, Mark | UKIP | 1,568 | 3.2% | -9.6% |
| BAKER, James | LD | 1,070 | 2.2% | -1.5% |
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 71,224, having a valid vote count of 48,276 and an invalid vote count of 99.
Result declared at 04:33 on 9 June 2017.