Liga ASOBAL 1990–91

Liga ASOBAL 1990–91 was the first season of Liga ASOBAL. ASOBAL's governing body was established in May 18, 1990. The league was played in a two phases. In the first phase, a total of 16 teams were separate in two groups of eight teams. The first five of every groups passed to the second phase for the title. The last three passed to the second phase for the permanence in Liga ASOBAL.