Elections to Poole Borough Council were held on 6 May 1999, alongside other local elections across the United Kingdom. The Liberal Democrats lost the council to no overall control.
| Results[1] | ||||
|---|---|---|---|---|
| Party | Seatsbefore | Seatsafter | Change | |
| Liberal Democrats | 23 | 19 | 4 | |
| Conservative Party | 13 | 17 | 4 | |
| Labour Party | 3 | 3 | ||