The South Dragons won the 2008–09 NBL championship, beating the Melbourne Tigers 3–2 in the Grand Final series. The South Dragons finished top of the regular season at 22–8, so took the double; ten clubs played 30 games each.
Kirk Penney (NZ Breakers) led the league in scoring with 24.1 points a game. Luke Schenscher led in rebounds (10.8 a game) and Shane Heal in assists (5.7). The season's best single-game score was James Harvey's 42 points for the Gold Coast Blaze against the West Sydney Razorbacks on 31 January 2009. The biggest win was the NZ Breakers' 44-point defeat of the West Sydney Razorbacks, 114–70.
| # | Team | P | W | L | +/- |
|---|---|---|---|---|---|
| 1 | South Dragons | 30 | 22 | 8 | +276 |
| 2 | Melbourne Tigers | 30 | 20 | 10 | +184 |
| 3 | NZ Breakers | 30 | 18 | 12 | +177 |
| 4 | Perth Wildcats | 30 | 17 | 13 | +58 |
| 5 | Townsville Crocodiles | 30 | 17 | 13 | -22 |
| 6 | Adelaide 36ers | 30 | 15 | 15 | +27 |
| 7 | Wollongong Hawks | 30 | 11 | 19 | -153 |
| 8 | West Sydney Razorbacks | 30 | 11 | 19 | -164 |
| 9 | Cairns Taipans | 30 | 11 | 19 | -178 |
| 10 | Gold Coast Blaze | 30 | 8 | 22 | -205 |
Marked: the teams that played finals. Ordered by wins, then points difference; the league's own tiebreakers aren't applied.
South Dragons, who beat the Melbourne Tigers 3–2 in the Grand Final series.
The South Dragons, with a 22–8 record in the regular season.
Kirk Penney, with 24.1 points a game over 31 games.
Every champion since 1979: NBL champions. All seasons on file: the NBL archive.