An election to the 57th Parliament of the United Kingdom for the constituency area of Kilmarnock and Loudoun, held as part of the general election on 8 June 2017.
SNP hold by Alan Brown with a majority of 6,269 - 13.5% - on a turnout of 63.4%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| BROWN, Alan | SNP | 19,690 | 42.3% | -13.3% |
| DOVER, Laura | Lab | 13,421 | 28.9% | -1.5% |
| HARPER, Alison | Con | 12,404 | 26.7% | 14.1% |
| LANG, Irene | LD | 994 | 2.1% | 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 73,327, having a valid vote count of 46,509 and an invalid vote count of 81.
Result declared at 01:50 on 9 June 2017.