This is a list of Plaid Cymru MPs. It includes all members of Parliament elected to the British House of Commons representing Plaid Cymru. Members of the Senedd or the European Parliament are not listed.
| Name | Constituency | Served from | Served to | Term length | Days |
|---|---|---|---|---|---|
| 28 February 1974 | 7 June 2001 | ||||
| 8 June 2001 | 30 May 2024 | ||||
| 9 April 1992 | 30 March 2015 | ||||
| 28 February 1974 | 9 April 1992 | ||||
| 11 June 1987 | 7 June 2001 | ||||
| 6 May 2010 | 22 May 2020 | ||||
| 8 May 2015 | present | ||||
| 8 June 2001 | 12 April 2010 | ||||
| 14 July 1966 | 18 June 1970 | 8 years 5 months 27 days | 3,101 | ||
| 10 October 1974 | 3 May 1979 | ||||
| 9 April 1992 | 8 January 2000 | ||||
| Ceredigion | 9 June 2017 | present | |||
| 3 February 2000 | 5 May 2005 | ||||
| Caerfyrddin | 4 July 2024 | present | |||
| Ynys Môn | 4 July 2024 | present | |||
Dates are taken from a House of Commons Library Briefing.[1] Following a rule change that came into force at the 2005 general election MPs who were defeated (eg Simon Thomas) are shown as serving up to and including the day of the election at which they were defeated. MPs who voluntarily stood down (eg Elfyn Llwyd) are shown as serving up until the day of dissolution of their final Parliament.
| Constituency | 1966 | 1970 | Feb 74 | Oct 74 | 1979 | 1987 | 1992 | 1997 | 2000 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2020 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Evans | Evans | Price | Edwards | Davies | ||||||||||||||
| Wigley | Williams | |||||||||||||||||
| Elis Thomas | Llwyd | Saville-Roberts | ||||||||||||||||
| Ynys Môn | Wyn Jones | Medi | ||||||||||||||||
| Dafis | Thomas | Lake | ||||||||||||||||
| No. of Plaid Cymru MPs | 1 | 0 | 2 | 3 | 2 | 3 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 4 | 3 | 4 | |