Kevin Brennan Elections contested
Parliament Member page for Kevin Brennan
Elections listed as contested and won are those forming part of the general elections in 2010, 2015, 2017, 2019 or 2024 and any by-election contested during the 58th Parliament. A person may have contested an election outside this grouping.
| Election | Constituency | Election type | Party | Vote count | Vote share | Position |
| 12 December 2019 | Cardiff West | General election | Lab | 23,908 | 51.8% | 1st |
| 8 June 2017 | Cardiff West | General election | Lab | 26,425 | 56.7% | 1st |
| 7 May 2015 | Cardiff West | General election | Lab | 17,803 | 40.7% | 1st |
| 6 May 2010 | Cardiff West | General election | Lab | 16,894 | 41.2% | 1st |