Results for the UK general election on 12 December 2019 Northern Ireland - 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 |
| Democratic Unionist Party | 17 | 244,128 | 30.6% | 8 |
| Sinn Féin | 15 | 181,853 | 22.8% | 7 |
| Social Democratic & Labour Party | 15 | 118,737 | 14.9% | 2 |
| Alliance | 18 | 134,115 | 16.8% | 1 |
| Ulster Unionist Party | 16 | 93,123 | 11.7% | 0 |
| Aontú | 7 | 9,814 | 1.2% | 0 |
| People Before Profit Alliance | 2 | 7,526 | 0.9% | 0 |
| Conservative | 4 | 5,433 | 0.7% | 0 |
| Green Party Northern Ireland | 3 | 1,996 | 0.2% | 0 |
| UK Independence Party | 2 | 623 | 0.1% | 0 |