Belfast South & Mid Down is currently held by the Social Democratic and Labour Party, and awaits results.
Results for 2019 are notional estimates based on the new boundaries.
| Votes | Share % | Change %pts. | ||
|---|---|---|---|---|
| Dan Boucher Traditional Unionist Voice | − | − | − | |
| Aine Groogan Green | − | − | − | |
| Claire Hanna Social Democratic and Labour Party | − | − | − | |
| Michael Henderson Ulster Unionist Party | − | − | − | |
| Tracy Kelly Democratic Unionist Party | − | − | − | |
| Kate Nicholl Alliance | − | − | − |