The 2005–06 NBA season was the 60th season of the National Basketball Association (NBA). The Miami Heat defeated the Dallas Mavericks in the NBA Finals, four games to two, to win their first NBA championship.

This marked that it was the final regular season to be held in November and the following season it would start in October.

Notes

Teams in bold advanced to the next round. The numbers to the left of each team indicate the team's seeding in its conference, and the numbers to the right indicate the number of games the team won in that round. The division champions are marked by an asterisk. Home court advantage does not necessarily belong to the higher-seeded team, but instead the team with the better regular season record; teams enjoying the home advantage are shown in italics.

The following players were named the Eastern and Western Conference Players of the Month.

The following players were named the Eastern and Western Conference Rookies of the Month.