A general election to the 58th Parliament of the United Kingdom with an electorate of 47,562,702, having 32,014,110 valid votes and 117,919 invalid votes.
Read the House of Commons Library briefing.
By area - By majority - By vote share of winning candidate - By turnout - By declaration time - By party - Non-party candidates
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 | 41.1% | 22 |
| Conservative | 40 | 557,234 | 36.2% | 14 |
| Plaid Cymru | 36 | 153,265 | 10.0% | 4 |
| Liberal Democrat | 32 | 92,171 | 6.0% | 0 |
| The Brexit Party | 32 | 83,908 | 5.5% | 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 |