This list of political parties in Wales includes those that hold seats in the Senedd (Welsh Parliament; Welsh: Senedd Cymru), those that contest seats for the Senedd, those that have previously contested seats in the Senedd but have since disbanded, and those which stand candidates in local government elections.
The following are political parties which are represented in the Senedd.
|Welsh Labour||Welsh: Llafur Cymru||30||22||Centre-left||Social democratic, Democratic socialist, Unionist|
|Welsh Conservatives||Welsh: Ceidwadwyr Cymreig||16||14||Centre-right||Conservative, Unionist|
|Plaid Cymru||English: Party of Wales||13||3||Centre-left to left-wing||Nationalist, Democratic socialist, Social democratic, Welsh independence|
|Welsh Liberal Democrats||Welsh: Democratiaid Rhyddfrydol Cymru||1||0||Centre to centre-left||Social liberalism, Federalism, Pro-Europeanism|
Political parties with representation at local government level in Wales.
Registered parties without elected representation in Wales
|No More Lockdowns||Welsh: Dim Mwy O Gloi Lawr||N/A||Welsh nationalism, Welsh independence, Hard Euroscepticism, Anti-lockdown|
|Reform UK||Welsh: Diwygio DU||Big tent||Populism, Euroscepticism|
|Socialist Party Wales||Welsh: Plaid Sosialaidd Cymru||Far-left||Revolutionary socialism, Trotskyism, Marxism|
|UK Independence Party||Welsh: Plaid Annibyniaeth y DU||Right-wing to far-right||Euroscepticism, National conservatism, Right-wing populism, Unionist|
|Welsh Christian Party||Welsh: Plaid Gristnogol Cymru||Right-wing||Christian right, Euroscepticism, Social conservatism, British (Welsh) unionism|
|Women's Equality Party||Welsh: Plaid Cydraddoldeb Merched||Centre-left||Feminism, Pro-Europeanism|
- South Wales Socialist Society (1911–1920) - amalgamated with the Communist Party of Great Britain in the 1920s.
- Communist Party of South Wales and the West of England (1920) - set up by those who opposed amalgamation with the Communist Party of Great Britain
- Welsh Republican Movement (1949–1966) - most members either returned to Plaid Cymru or joined the Labour Party
- Welsh Socialist Republican Movement (1979–1986) - succeeded as a political party in 1986 by Cymru Goch, however it still exists as a publication
- Cymru Goch (1986–2003) - evolved into Forward Wales.
- Democratic Alliance of Wales (1999–2008)
- John Marek Independent Party (2003) - short lived party which became Forward Wales.
- Forward Wales (2003–2010)
- Blaenau Gwent People's Voice Group (2005–2010) - party set-up in Blaenau Gwent. Its leader, Dai Davies, retired from politics and the party disbanded.
- Putting Llanelli First (2011–2016) - Siân Caiach (now a councillor for Gwlad - The Welsh Independence Party) ran for the party in the Welsh Assembly seat of Llanelli in 2011 and 2016.
- Respect - The Unity Coalition (2004–2016) - a party established by Salma Yaqoob and George Monbiot and built out of the Stop the War Coalition, its most notable candidate was George Galloway
- Welsh Socialist Alliance (1999–2016) an alliance between the Socialist Party and Cymru Goch and some independents, which fell apart when the Socialist Party left the grouping
- Elections in Wales
- Politics of Wales
- Electoral Commission (United Kingdom)
- Political make-up of local councils in Wales
- "Independent AM Neil McEvoy to launch new Welsh National Party". ITV News. Retrieved 6 June 2020.
- Your Councillors. Gwynedd Council. Retrieved 11 July 2017.
- "Sian Mair Caiach". Llanelli Rural Council. Retrieved 6 June 2020.
- "Gwlad Gwlad standing in four seats where Plaid Cymru have withdrawn 'to offer people a pro-independence vote'". Nation.Cymru. 15 November 2019. Retrieved 7 June 2020.
- "Elected Councillors – The Liberal Party". Retrieved 6 June 2020.
- "Where We Stand and Why We are Needed – The Liberal Party". Retrieved 7 June 2020.
- "View registration - The Electoral Commission". search.electoralcommission.org.uk. Retrieved 7 June 2020.
- "Your Councillors by Party". Powys.gov. Retrieved 6 June 2020.
- "Wales Green Party | Vale Of Glamorgan Candidate Picked For Unite To Remain Seat". wales.greenparty.org.uk. Retrieved 7 June 2020.
- "Socialist Party Wales – Socialism In Wales". Retrieved 7 June 2020.
- WalesOnline (11 August 2003). "New Welsh Socialist dawn?". WalesOnline. Retrieved 7 June 2020.
- "Former Llan'dod mayor stands for Christian Party in General Election". County Times. Retrieved 7 June 2020.
- People First - Gwerin Gyntaf (De-registered 03/11/16), The Electoral Commission. Retrieved 2018-09-23.