Results for the UK general election on 12 December 2019 South East, England - Elections won by Labour
Figures presented for Labour include those candidates certified by both the Labour and the Co-operative parties.
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Majority |
| Brighton, Kemptown | RUSSELL-MOYLE, Lloyd | 69,833 | 69.5% | 25,033 | 51.6% | -6.8% | 8,061 |
| Canterbury | DUFFIELD, Rosemary | 80,203 | 75.0% | 29,018 | 48.3% | 3.3% | 1,836 |
| Hove | KYLE, Peter | 74,313 | 75.9% | 32,876 | 58.3% | -5.8% | 17,044 |
| Oxford East | DODDS, Anneliese | 78,303 | 63.0% | 28,135 | 57.0% | -8.2% | 17,832 |
| Portsmouth South | MORGAN, Stephen | 74,186 | 63.9% | 23,068 | 48.6% | 7.6% | 5,363 |
| Reading East | RODDA, Mathew | 77,152 | 72.5% | 27,102 | 48.5% | -0.6% | 5,924 |
| Slough | DHESI, Tan | 86,818 | 58.8% | 29,421 | 57.6% | -5.3% | 13,640 |
| Southampton, Test | WHITEHEAD, Alan | 70,116 | 64.2% | 22,256 | 49.5% | -9.2% | 6,213 |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.