An election to the 58th Parliament of the United Kingdom for the constituency area of Na h-Eileanan An Iar, held as part of the general election on 12 December 2019.
SNP hold by Angus Brendan MacNeil with a majority of 2,438 - 16.8% - on a turnout of 68.6%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| MACNEIL, Angus Brendan | SNP | 6,531 | 45.1% | 4.5% |
| MACCORQUODALE, Alison | Lab | 4,093 | 28.3% | -5.5% |
| ROSS, Jennifer | Con | 3,216 | 22.2% | 5.7% |
| MITCHISON, Neil | LD | 637 | 4.4% | 2.7% |
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 21,106, having a valid vote count of 14,477 and an invalid vote count of 65.
Result declared at 02:37 on 13 December 2019.