The National Basketball League (Petronas-Molten National Basketball League for sponsorship reason), often abbreviated to the NBL, is the pre-eminent men's basketball league in Malaysia, organised by the Malaysia Basketball Association (MABA). The competition started as Malaysian Basketball League (MBL) in 1981. In 2002, MABA appointed Mr. Tan Kee Hian to handle the competition and changed the league's name to National Basketball League (NBL).