The 1991–92 Boston Celtics season was the 46th season of the Boston Celtics in the National Basketball Association (NBA). This marked the NBA final season for legendary Celtics forward Larry Bird and Bird missed nearly half of the games in this season due to a nagging back injury. However, one of the season highlights was a 49 point performance from Bird in a nationally televised double-overtime win over eventual western conference champion Portland. The Celtics trailed the New York Knicks in the Atlantic Division for much of the season, but a furious rally at the end of the season helped the Celtics finish 51-31 and claim the division title (and the #2 Eastern Conference seed, although since they finished behind #3 seed Cleveland in record, Cleveland would have home court in a head-to-head playoff series).
The Celtics swept Indiana in the first round, but succumbed to Cleveland in a 7-game eastern conference semifinal series.