| ||||||||||
| Dates | December 8–15, 1991 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Television | Vintage Sports (PTV) | |||||||||
| Radio network | DZAM | |||||||||
The 1991 PBA Third Conference finals was the best-of-5 basketball championship series of the 1991 PBA Third Conference, and the conclusion of the conference's playoffs. The Alaska Milkmen and Ginebra San Miguel played for the 50th championship contested by the league.
Alaska Milk won their first PBA title after five years, winning their finals series against Ginebra San Miguel, 3 games to 1.