Roger Williams Elections contested
Parliament Member page for Roger Williams
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 |
| 7 May 2015 | Brecon and Radnorshire | General election | LD | 11,351 | 28.3% | 2nd |
| 6 May 2010 | Brecon and Radnorshire | General election | LD | 17,929 | 46.2% | 1st |