The 1980–81 NBA season was the 35th season of the National Basketball Association. The season ended with the Boston Celtics winning the NBA Championship, beating the Houston Rockets 4 games to 2 in the NBA Finals. As of 2023, this was the last time an NBA season (including postseason) had ended before Memorial Day.

Notable occurrences

Teams

Map of teams

Final standings

By division

By conference

Notes

Playoffs

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. Note that in the Western Conference, the lower seeded team won every series.

Statistics leaders

NBA awards

Players of the week

Players of the month