Iain Stewart Elections contested
Parliament Member page for Iain Stewart
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 | Buckingham and Bletchley | General election | Con | 15,181 | 31.9% | 2nd |
| 12 December 2019 | Milton Keynes South | General election | Con | 32,011 | 50.0% | 1st |
| 8 June 2017 | Milton Keynes South | General election | Con | 30,652 | 47.5% | 1st |
| 7 May 2015 | Milton Keynes South | General election | Con | 27,601 | 46.8% | 1st |
| 6 May 2010 | Milton Keynes South | General election | Con | 23,034 | 41.6% | 1st |