This article is missing information about Error: you must specify what information is missing.. Please expand the article to include this information. Further details may exist on the talk page.(January 2011)
The 2005–06 Boston Celtics season was the 60th season of the Boston Celtics in the National Basketball Association (NBA). This was the 56th and final season of Arnold "Red" Auerbach's official involvement with the team. Auerbach (who continued to hold the title of team president) died shortly before the next season.