Keir Mather Elections contested
Parliament Member page for Keir Mather
Elections listed as contested and won are those forming part of any general election or by-election contested since since the 2010 general election. A person may have contested an election outside of this grouping.
| Election | Constituency | Election type | Party | Vote count | Vote share | Position |
| 4 July 2024 | Selby | General election | Lab | - | - | 1st |
| 20 July 2023 | Selby and Ainsty | By-election | Lab | 16,456 | 46.0% | 1st |