The 2017–18 NBL season was the 40th season of the National Basketball League since its establishment in 1979. A total of eight teams contested the league. The regular season was played between October 2017 and February 2018, followed by a post-season featuring the top four in March 2018. Australian broadcast rights to the season were held by Fox Sports, in the third year of a five-year deal, with two games per week simulcast on SBS. In New Zealand, Sky Sport were the official league broadcaster.