Fiona Mactaggart Elections contested
Parliament Member page for Fiona Mactaggart
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 |
| 7 May 2015 | Slough | General election | Lab | 23,421 | 48.5% | 1st |
| 6 May 2010 | Slough | General election | Lab | 21,884 | 45.8% | 1st |