The Copa Príncipe de Asturias ACB (Prince of Asturias Cup) was a basketball tournament played with teams of Liga ACB between 1986 and 1991. The 1985 tournament was called Copa Asociación or Torneo de la ACB. Since the next season to its end, it was called Copa Príncipe de Asturias.
The first edition of Copa Príncipe de Asturias was played by the eliminated teams in the Round of 16 and the quarterfinals of the 1984–85 ACB season. Caja de Álava won the tournament, which was its first official title in the club history. The final was played in Villanueva de la Serena.
This was the first edition with the name of Copa Príncipe de Asturias. Like in the previous season, the tournament was played by the losers in the two first rounds of the 1985–86 ACB season. Teams were divided in two groups of four teams with a double round-robin competition. The two first qualifieds played the semifinals.
The 1986–87 edition was played between the months of October and November 1986. A single round tournament was played. The final was in a neutral venue. In the first time they played the tournament, Joventut Badalona took the victory after defeating Manresa and playing only the semifinal game at home.
Like in the last year, the 1987–88 Copa Príncipe was played with a knockout stage format, but in double leg series. The Final Four was played in single games at Palma de Mallorca. FC Barcelona won its first tournament.
The format was similar than the 1989 edition and it was held at A Coruña in September 1991. This was the last edition of the Copa Príncipe de Asturias with teams of Liga ACB and Joventut Badalona won its third title.