Elections to Portsmouth Council were held on 7 May 1998. 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
| Portsmouth Local Election Result 1998 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Party | Seats | Gains | Losses | Net gain/loss | Seats % | Votes % | Votes | +/- | ||
| Labour | 7 | 0 | 53.8 | |||||||
| Conservative | 3 | +2 | 23.1 | |||||||
| Liberal Democrat | 3 | -2 | 23.1 | |||||||
| Preceded by Portsmouth Council election, 1996 |
Portsmouth local elections | Succeeded by Portsmouth Council election, 1999 |