An election to the 58th Parliament of the United Kingdom for the constituency area of Belfast South, held as part of the general election on 12 December 2019.
SDLP gain from DUP by Claire Hanna with a majority of 15,401 - 32.5% - on a turnout of 67.7%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| HANNA, Claire | SDLP | 27,079 | 57.2% | 31.3% |
| LITTLE PENGELLY, Emma | DUP | 11,678 | 24.7% | -5.8% |
| BRADSHAW, Paula | APNI | 6,786 | 14.3% | -3.9% |
| HENDERSON, Michael | UUP | 1,259 | 2.7% | -0.8% |
| MCHUGH, Chris | AONT | 550 | 1.2% | - |
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.
An electorate of 69,984, having a valid vote count of 47,352 and an invalid vote count of 172.
Result declared at 03:43 on 13 December 2019.