Portsmouth South is currently held by the Labour Party, and awaits results.
Results for 2019 are from the 2019 General Election.
| Votes | Share % | Change %pts. | ||
|---|---|---|---|---|
| Elliott Lee Green | − | − | − | |
| Stephen Morgan Labour | − | − | − | |
| Charlie Murphy Liberal Democrat | − | − | − | |
| Mark Zimmer Reform UK | − | − | − | |
| Signe Biddle Conservative | − | − | − | |
| Jacob Short Portsmouth Independent Party | − | − | − |