1991 ACB Playoffs
The 1991 ACB Playoffs was the final phase of the 1990–91 ACB season. It started on Wednesday, April 3, 1991, and run until Saturday, May 19, 1991.
First round
The first round were best-of-3 series.Montigalà Joventut">Joventut Badalona">Montigalà Joventut vs. DYC Breogán">CB Breogán">DYC Breogán
----''Montigalà Joventut won the series 2-0''
At. Madrid Villalba">CB Collado Villalba">At. Madrid Villalba vs. Valvi Girona">CB Girona">Valvi Girona
----''At. Madrid Villalba won the series 2-0''
Taugrés">Saski Baskonia">Taugrés vs. Pamesa Valencia">Valencia BC">Pamesa Valencia
----''Taugrés won the series 2-0''
Real Madrid Otaysa">Real Madrid Baloncesto">Real Madrid Otaysa vs. Caja Ronda">CB Málaga">Caja Ronda
----''Real Madrid Otaysa won the series 2-0''
Estudiantes Caja Postal">CB Estudiantes">Estudiantes Caja Postal vs. Caixa Ourense">Ourense Baloncesto">Caixa Ourense
----''Estudiantes Caja Postal won the series 2-0''
CAI Zaragoza">CB Zaragoza">CAI Zaragoza vs. [CB [Peñas Huesca|Huesca La Magia]]
----''CAI Zaragoza won the series 2-0''
Fórum Valladolid">CB Valladolid">Fórum Valladolid vs. [CB Maristas [de Málaga|Mayoral Maristas]]
----''Fórum Valladolid won the series 2-0''
FC Barcelona">FC Barcelona Bàsquet">FC Barcelona vs. Caja [San Fernando">CB Sevilla">Caja [San Fernando]
----''FC Barcelona won the series 2-0''
Quarterfinals
The quarterfinals were best-of-3 series.Montigalà Joventut">Joventut Badalona">Montigalà Joventut vs. At. Madrid Villalba">CB Collado Villalba">At. Madrid Villalba
----''Montigalà Joventut won the series 2-0.''
Real Madrid Otaysa">Real Madrid Baloncesto">Real Madrid Otaysa vs. Taugrés">Saski Baskonia">Taugrés
----''Taugrés won the series 2-0''
Estudiantes Caja Postal">CB Estudiantes">Estudiantes Caja Postal vs. CAI Zaragoza">CB Zaragoza">CAI Zaragoza
----''Estudiantes Caja Postal won the series 2-0''
FC Barcelona">FC Barcelona Bàsquet">FC Barcelona vs. Fórum Valladolid">CB Valladolid">Fórum Valladolid
--------
''FC Barcelona won the series 2-1''
Semifinals
The semifinals were best-of-5 series.Montigalà Joventut">Joventut Badalona">Montigalà Joventut vs. Taugrés">Saski Baskonia">Taugrés
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----
''Montigalà Joventut won the series 3-1''
FC Barcelona">FC Barcelona Bàsquet">FC Barcelona vs. Estudiantes Caja Postal">CB Estudiantes">Estudiantes Caja Postal
--------
----
''FC Barcelona won the series 3-1''
Finals
The finals was a best-of-5 series.Montigalà Joventut">Joventut Badalona">Montigalà Joventut vs. FC Barcelona">FC Barcelona Bàsquet">FC Barcelona
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----
Montigalà Joventut won the series 3-1
ACB Finals MVP: Corny Thompson
| 1990-91 ACB League |
| Montigalà Joventut 3rd Title 1st since ACB |