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The National Basketball League (NBL) Grand Final is the championship series at the conclusion of the NBL to determine the NBL champion. Between 1979 and 1986, the league used a single game to determine the champion. From 1986 to 2003, the league used a best-of-three series format. The 2004 series saw a switch a to best-of-five format. In 2010, the series reverted back to a best-of-three format once again until 2017 when it switched back to best-of-five. The Perth Wildcats hold the record for the most championships, having won 10 grand finals.
| Bold | Winning team of the NBL Grand Final |
| Team | Win | Loss | Total | Win % | Year(s) won | Year(s) lost |
|---|---|---|---|---|---|---|
| Perth Wildcats | 10 | 6 | 16 | .625 | 1990, 1991, 1995, 2000, 2010, 2014, 2016, 2017, 2019, 2020 | 1987, 1993, 2003, 2012, 2013, 2021 |
| Melbourne United [a] | 6 | 6 | 12 | .500 | 1993, 1997, 2006, 2008, 2018, 2021 | 1992, 1996, 2007, 2009, 2019, 2024, 2025 |
| Sydney Kings | 5 | 3 | 8 | .625 | 2003, 2004, 2005, 2022, 2023 | 2006, 2008, 2020 |
| Adelaide 36ers | 4 | 4 | 8 | .500 | 1986, 1998, 1999, 2002 | 1985, 1994, 2014, 2018 |
| New Zealand Breakers | 4 | 2 | 6 | .667 | 2011, 2012, 2013, 2015 | 2016, 2023 |
| Brisbane Bullets | 3 | 3 | 6 | .500 | 1985, 1987, 2007 | 1984, 1986, 1990 |
| Canberra Cannons † | 3 | 2 | 5 | .600 | 1983, 1984, 1988 | 1979, 1989 |
| North Melbourne Giants † | 2 | 2 | 4 | .500 | 1989, 1994 | 1988, 1995 |
| South East Melbourne Magic † | 2 | 2 | 4 | .500 | 1992, 1996 | 1997, 1998 |
| Southern Melbourne Saints † | 2 | 0 | 2 | 1.000 | 1979, 1980 | — |
| Illawarra Hawks | 2 | 3 | 5 | .250 | 2001, 2025 | 2005, 2010, 2017 |
| West Adelaide Bearcats † | 1 | 2 | 3 | .333 | 1982 | 1980, 1983 |
| Tasmania JackJumpers | 1 | 1 | 2 | .500 | 2024 | 2022 |
| Launceston Casino City † | 1 | 0 | 1 | 1.000 | 1981 | — |
| South Dragons † | 1 | 0 | 1 | 1.000 | 2009 | — |
| Eastside Spectres † | 0 | 2 | 2 | .000 | — | 1981, 1991 |
| Victoria Titans † | 0 | 2 | 2 | .000 | — | 1999, 2000 |
| West Sydney Razorbacks † | 0 | 2 | 2 | .000 | — | 2002, 2004 |
| Cairns Taipans | 0 | 2 | 2 | .000 | — | 2011, 2015 |
| Geelong Supercats † | 0 | 1 | 1 | .000 | — | 1982 |
| Townsville Crocodiles † | 0 | 1 | 1 | .000 | — | 2001 |
† indicates club is not a current member of the NBL.