An election to the 57th Parliament of the United Kingdom for the constituency area of West Dunbartonshire, held as part of the general election on 8 June 2017.
SNP hold by Martin Docherty-Hughes with a majority of 2,288 - 5.2% - on a turnout of 65.2%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| DOCHERTY-HUGHES, Martin | SNP | 18,890 | 42.9% | -16.2% |
| MITCHELL, Jean Anne | Lab | 16,602 | 37.7% | 6.3% |
| HUTTON, Penny | Con | 7,582 | 17.2% | 10.2% |
| PLENDERLEITH, Rebecca | LD | 1,009 | 2.3% | 0.7% |
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 67,602, having a valid vote count of 44,083 and an invalid vote count of 86.
Result declared at 01:44 on 9 June 2017.