The 2010–11 NBL season was the 33rd season of competition since its establishment in 1979. A total of nine teams contested the league. The regular season was played between October 2010 and April 2011, followed by a post-season involving the top four. On 23 February 2010, it was announced that the Sydney Kings would return in 2010–11. The schedule was announced on 27 May 2010.