The 2011–12 season of BAI Basket (34th edition) ran from November 25, 2011 through May 17, 2012, with 12 teams playing the regular season in a double round robin system. The tournament was cut short due to the Angolan national team's engagement at the Olympics qualification tournament and also due to a strike of referees, in that at the end of the regular season, the best six teams played a double round robin tournament for the title in serie A as did the last six teams for the consolation, serie B.