The 2015 MSBL season was the 27th season of the Men's State Basketball League (SBL). The regular season began on Friday 13 March, with Perry Lakes and Kalamunda hosting East Perth and Mandurah respectively. The 2015 MSBL All-Star Game was played on 1 June at Bendat Basketball Centre – the home of basketball in Western Australia. The regular season ended on Saturday 25 July. The finals began on Friday 31 July and ended on Saturday 29 August, when the Joondalup Wolves defeated the South West Slammers in the MSBL Grand Final.