Results for the UK general election on 12 December 2019 Wales - by party
Registered political parties nominating candidates standing in the general election on 12 December 2019. This list does not include candidates standing as independents or the candidate standing as House of Commons Speaker.
| Party | Constituencies contested | Votes | Vote share | Constituencies won |
| Labour | 40 | 632,035 | 40.9% | 22 |
| Conservative | 40 | 557,234 | 36.1% | 14 |
| Plaid Cymru | 36 | 153,265 | 9.9% | 4 |
| Liberal Democrat | 32 | 92,171 | 6.0% | 0 |
| The Brexit Party | 32 | 83,908 | 5.4% | 0 |
| Green Party | 18 | 15,828 | 1.0% | 0 |
| Gwlad Gwlad | 3 | 1,515 | 0.1% | 0 |
| The Cynon Valley Party | 1 | 1,322 | 0.1% | 0 |
| Official Monster Raving Loony Party | 1 | 345 | 0.0% | 0 |
| Christian Party, Proclaiming Christ's Lordship | 1 | 245 | 0.0% | 0 |
| Social Democratic Party | 2 | 181 | 0.0% | 0 |
| The Socialist Party of Great Britain | 1 | 88 | 0.0% | 0 |