The 1988 PBA All-Filipino Conference Finals was the best-of-5 series basketball championship of the 1988 PBA All-Filipino Conference, and the conclusion of the conference's playoffs. The Añejo Rum 65ers and Purefoods Hotdogs played for the 40th championship contested by the league. The Añejo Rum 65ers won the All-Filipino Conference title with a 3–1 series victory over Purefoods Hotdogs, for their 2nd PBA championship, the Rum Masters became the fifth team to win the All-Filipino crown.