Results for the UK general election on 6 May 2010 South West, England - by party
Registered political parties nominating candidates standing in the general election on 6 May 2010. 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 |
| Conservative | 55 | 1,187,637 | 42.8% | 36 |
| Liberal Democrat | 55 | 962,954 | 34.7% | 15 |
| Labour | 55 | 426,910 | 15.4% | 4 |
| UK Independence Party | 55 | 123,975 | 4.5% | 0 |
| Green Party | 40 | 31,517 | 1.1% | 0 |
| British National Party | 19 | 20,866 | 0.8% | 0 |
| Mebyon Kernow - The Party for Cornwall | 6 | 5,379 | 0.2% | 0 |
| English Democrats | 9 | 3,277 | 0.1% | 0 |
| Liberal | 1 | 1,108 | 0.0% | 0 |
| Official Monster Raving Loony Party | 3 | 1,030 | 0.0% | 0 |
| Christian Party, Proclaiming Christ's Lordship | 4 | 743 | 0.0% | 0 |
| Socialist Labour Party | 3 | 499 | 0.0% | 0 |
| The Cornish Democrats | 1 | 396 | 0.0% | 0 |
| Trade Unionist and Socialist Coalition | 2 | 390 | 0.0% | 0 |
| INDEPENDENT Leave-the-EU Alliance | 1 | 236 | 0.0% | 0 |
| Movement for Active Democracy (M.A.D.) | 1 | 233 | 0.0% | 0 |
| Libertarian Party | 1 | 141 | 0.0% | 0 |
| Independents Federation UK | 1 | 126 | 0.0% | 0 |
| Communist Party of Britain | 1 | 96 | 0.0% | 0 |
| All The South Party | 1 | 31 | 0.0% | 0 |