| 1991 PBA season | |
|---|---|
| Duration | February 17, 1991 – December 15, 1991 |
| Number of teams | 8 |
| TV partner(s) | Vintage Sports (PTV) |
| Draft | |
| Top draft pick | Alejandro Araneta |
| Picked by | Alaska Milkmen |
| Conferences | |
| First Conference champions | Ginebra San Miguel |
| Runners-up | Shell Rimula X |
| All-Filipino Conference champions | Purefoods TJ Hotdogs |
| Runners-up | Diet Sarsi |
| Third Conference champions | Alaska Milkmen |
| Runners-up | Ginebra San Miguel |
| Awards | |
| Season MVP | Alvin Patrimonio |
| Seasons | |
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< 1990
1992 >
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The 1991 PBA season was the 17th season of the Philippine Basketball Association (PBA).
The muses for the participating teams are as follows: