| 1991 WNBL season | |
| League: | Women's National Basketball League (WNBL) |
| Sport: | Basketball |
| No Of Teams: | 12 |
| Tv: | ABC |
| Season: | Regular season |
| Top Seed: | Hobart Islanders |
| Mvp: | Joanne Metcalfe (Melbourne Tigers) |
| Mvp Link: | WNBL Most Valuable Player Award |
| Top Scorer: | Joanne Metcalfe (Melbourne Tigers) |
| Top Scorer Link: | WNBL Top Shooter Award |
| Finals: | Finals |
| Finals Champ: | Hobart Islanders |
| Finals Runner-Up: | Nunawading Spectres |
| Finals Mvp: | Robyn Maher (Hobart Islanders) |
| Finals Mvp Link: | WNBL Grand Final Most Valuable Player Award |
| Seasonslist: | List of WNBL seasons |
| Seasonslistnames: | WNBL |
| Prevseason Link: | 1990 WNBL season |
| Prevseason Year: | 1990 |
| Nextseason Link: | 1992 WNBL season |
| Nextseason Year: | 1992 |
The 1991 WNBL season was the 11th season of competition since the league's establishment in 1981. A total of 12 teams contested the league.
| Team | Played | Won | Lost | Won % | ||
|---|---|---|---|---|---|---|
| 1 | Hobart Islanders | 22 | 18 | 4 | 82 | |
| 2 | Nunawading Spectres | 22 | 18 | 4 | 82 | |
| 3 | Perth Breakers | 22 | 15 | 7 | 68 | |
| 4 | North Adelaide Rockets | 22 | 13 | 9 | 59 | |
| 5 | Canberra Capitals | 22 | 12 | 10 | 55 | |
| 6 | Bulleen Boomers | 22 | 11 | 11 | 50 | |
| 7 | Melbourne Tigers | 22 | 11 | 11 | 50 | |
| 8 | Australian Institute of Sport | 22 | 10 | 12 | 45 | |
| 9 | 22 | 10 | 12 | 45 | ||
| 10 | Brisbane Lady Bullets | 22 | 9 | 13 | 41 | |
| 11 | Noarlunga Tigers | 22 | 5 | 17 | 23 | |
| 12 | West Adelaide Bearcats | 22 | 0 | 22 | 0 |
| width=125 | Award | width=125 | Winner | width=125 | Team |
|---|---|---|---|---|---|
| Most Valuable Player Award | Joanne Metcalfe | Melbourne Tigers | |||
| Grand Final MVP Award | Robyn Maher | Hobart Islanders | |||
| Rookie of the Year Award | Michelle Brogan | Noarlunga Tigers | |||
| Defensive Player of the Year Award | Kim Foley | Hobart Islanders | |||
| Coach of the Year Award | Jerry Lee | Canberra Capitals | |||
| Top Shooter Award | Joanne Metcalfe | Melbourne Tigers |
| width=100 | Category | width=125 | Player | width=125 | Team | width=50 | GP | width=50 | Totals | width=50 | Average |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Points Per Game | Joanne Metcalfe | Melbourne Tigers | 22 | 479 | 21.8 | ||||||
| Rebounds Per Game | Debbie Slimmon | Bulleen Boomers | 22 | 279 | 12.7 | ||||||
| Assists Per Game | Michele Landon | Sydney Flames | 22 | 158 | 7.2 | ||||||
| Steals Per Game | Michele Timms | Perth Breakers | 22 | 79 | 3.6 | ||||||
| Blocks per game | Jenny Whittle | AIS | 22 | 57 | 2.6 | ||||||
| Field Goal % | Lucille Hamilton | Nunawading Spectres | 22 | (117/201) | 58.2% | ||||||
| Three-Point Field Goal % | Debbie Black | Hobart Islanders | 22 | (21/49) | 42.9% | ||||||
| Free Throw % | Sally Phillips | AIS | 22 | (52/57) | 91.2% |