NCAA Season 67 basketball tournaments
| Host school | San Beda College | |||||||||||||||
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| Duration | October 9–16, 1991 | |||||||||||||||
| Arena(s) | ULTRA | |||||||||||||||
| Finals MVP | Benny Cheng | |||||||||||||||
| Winning coach | Joel Banal | |||||||||||||||
| TV network(s) | Islands TV 13 | |||||||||||||||
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| Duration | October 9–16, 1991 | |||||||||||||||
| Arena(s) | ULTRA | |||||||||||||||
| Finals MVP | Tyrone Bautista | |||||||||||||||
| Winning coach | Ato Badolato | |||||||||||||||
The 1991 NCAA basketball tournament was the 67th season in the Philippine National Collegiate Athletic Association (NCAA). The season opens on August 3 at the Araneta Coliseum and ended on October 16 with the Mapua Cardinals winning back-to-back championships in the Seniors division and won their 5th NCAA crown.