Elections to Portsmouth City Council were held on 6 May 1999. One third of the council was up for election and the Labour party stayed in overall control of the council.
After the election, the composition of the council was
- Labour 20
- Conservative 10
- Liberal Democrat 9
Election result edit
| Party | Seats | Gains | Losses | Net gain/loss | Seats % | Votes % | Votes | +/− | |
|---|---|---|---|---|---|---|---|---|---|
| Labour | 6 | -1 | 46.2 | ||||||
| Conservative | 4 | +2 | 30.8 | ||||||
| Liberal Democrats | 3 | -1 | 23.1 | ||||||