Mark Williams Elections won
Parliament Member page for Mark 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 57th and 58th Parliaments. A person may have contested and won an election outside this grouping.
| Election | Constituency | Election type | Party | Vote count | Vote share | Majority |
| 7 May 2015 | Ceredigion | General election | LD | 13,414 | 35.9% | 3,067 |
| 6 May 2010 | Ceredigion | General election | LD | 19,139 | 50.0% | 8,324 |
Maiden speech
Mark Williams's maiden speech was made on 25 May 2005, as the member for Ceredigion. The speech took place in the 1st session of the 54th Parliament.