Elections to Three Rivers Council in Hertfordshire, England, were held on 4 May 2000. One third of the council was up for election and the Liberal Democrat party stayed in overall control of the council.
After the election, the composition of the council was:
| Party | Seats | Gains | Losses | Net gain/loss | Seats % | Votes % | Votes | +/− | |
|---|---|---|---|---|---|---|---|---|---|
| Liberal Democrats | 8 | 0 | 47.1 | ||||||
| Conservative | 6 | 0 | 35.3 | ||||||
| Labour | 3 | 0 | 17.6 | ||||||
