PBA
- Advertising Board of the Philippines
- BPA (disambiguation)
- Bluetooth profile
- Lead-Acid Battery
- PB Air
- PBA Partylist
- PBA Tour
- Palm Beach Atlantic University
- Partial-birth abortion
- PeoplesBank Arena
- Peroxybenzoic acid
- Philippine Basketball Association
- Pine Bluff Arsenal
- Pinnacle Bank Arena
- Police Benevolent Association
- Pre-boot authentication
- Probability bounds analysis
- Professional Bowlers Association
- Project bank account
- Province of Buenos Aires
- Provincetown-Boston Airlines
- Pseudobulbar affect
- Thalys PBA