PBA may refer to:
- Lead-Acid Battery (PbA)
- Palm Beach Atlantic University
- Partial-birth abortion or intact dilation and extraction
- Patrolmen's Benevolent Association
- PB Air's ICAO code
- Philippine Basketball Association
- Phone Book Access, a Bluetooth profile
- Pine Bluff Arsenal
- Police Benevolent Association
- Pre-boot authentication
- Professional Bowlers Association
- Provincetown-Boston Airlines
- Pseudobulbar affect, the pathological expression of laughter, crying, or smiling
- Thalys PBA, trainsets of the SNCF TGV Réseau
- Province of Buenos Aires, a province in Argentina
- Probability bounds analysis, a mathematical method of risk analysis.