The 2005–06 NBL season was the 28th season of competition since its establishment in 1979. A total of 11 teams contested the league.
Regular season
The 2005–06 regular season took place over 23 rounds between 2 September 2005 to 5 February 2006. Round 1Round 2Round 3Round 4Round 5Round 6Round 7Round 8Round 9Round 10Round 11Round 12Round 13Round 14Round 15Round 16Round 17Round 18Round 19Round 20Round 21Round 22Round 23 ==Ladder==
Ladder
The NBL tie-breaker system as outlined in the NBL Rules and Regulations states that in the case of an identical win–loss record, the results in games played between the teams will determine order of seeding. 1Wollongong Hawks won Head-to-Head (2-1). 2New Zealand Breakers won Head-to-Head (2-1). == Finals ==
Finals
Playoff bracket Elimination FinalsSemi-finalsGrand Final ==All Star Game==