Elections to Southwark Council were held in May 1990. The whole council was up for election. Turnout was 36.0%.
| Southwark Local Election Result 1990[1] | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Party | Seats | Gains | Losses | Net gain/loss | Seats % | Votes % | Votes | +/- | ||
| Labour | 37 | -6 | 57.8 | 47.8 | ||||||
| Liberal Democrat | 21 | +6 | 32.8 | 25.7 | ||||||
| Conservative | 6 | 0 | 9.4 | 20.1 | ||||||
| Preceded by Southwark Council election, 1986 |
Southwark local elections | Succeeded by Southwark Council election, 1994 |