The 2011–12 ABA season was the 11th season of the American Basketball Association that lasted from about November 2011, the finish of the regular season in late February, and the championship playoffs at the end of March 2012, which the Jacksonville Giants won by beating the South Carolina Warriors.
Originally, over ninety teams were scheduled to compete during the 2011–12 season.
Of the teams listed, East Kentucky Energy and Chi-Town Bulldogs disappeared before the season began.
Midwest Flames folded, with players and coaches joining another team.
St. Louis Pioneers and Indiana Diesels both left to join the Premier Basketball League.