An election to the 56th Parliament of the United Kingdom for the constituency area of Dumfries and Galloway, held as part of the general election on 7 May 2015.
SNP gain from Labour by Richard Arkless with a majority of 6,514 - 11.5% - on a turnout of 75.2%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| ARKLESS, Richard | SNP | 23,440 | 41.4% | 29.1% |
| CARSON, Finlay | Con | 16,926 | 29.9% | -1.7% |
| BROWN, Russell | Lab | 13,982 | 24.7% | -21.2% |
| SIDDALL, Geoff | UKIP | 1,301 | 2.3% | 1.0% |
| METCALF, Andrew | LD | 953 | 1.7% | -7.1% |
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 75,249, having a valid vote count of 56,602 and an invalid vote count of 66.
Result declared at 05:11 on 8 May 2015.