| 1999–2000 WNBL season | |
|---|---|
| League | Women's National Basketball League |
| Sport | Basketball |
| Number of teams | 8 |
| TV partner(s) | ABC |
| Regular season | |
| Top seed | Canberra Capitals |
| Season MVP |
Lauren Jackson (Canberra Capitals) Trisha Fallon (Sydney Flames) |
| Top scorer | Trisha Fallon (Sydney Flames) |
| Finals | |
| Champions | Canberra Capitals |
| Runners-up | Adelaide Lightning |
The 1999–2000 WNBL season was the 20th season of competition since its establishment in 1981. A total of 8 teams contested the league.