| Acronym | Definition |
|---|
| APB | All Points Bulletin (law enforcement) |
| APB | Accounting Principles Board |
| APB | Accounting Principles Board opinion (GAAP) |
| APB | Auditing Practices Board (UK FRC) |
| APB | Asia-Pacific Broadcasting |
| APB | Acquisition Program Baseline |
| APB | Apoptygma Berzerk (band) |
| APB | Annual Performance Bonus |
| APB | Advanced Peripheral Bus |
| APB | Abductor Pollicis Brevis (muscle) |
| APB | Association Pharmaceutique Belge (Belgian Pharmacists Association) |
| APB | Advisory Policy Board (CJIS) |
| APB | Algemene Pharmaceutische Bond (Belgian Pharmacists Association) |
| APB | Atrial Premature Beat |
| APB | Association Parole-Bégaiement |
| APB | Self-Propelled Barracks Ship |
| APB | Agriculture Protection Board (Washington) |
| APB | Anti Pass Back (parking management) |
| APB | Anti-Phase Boundary (crystal chemistry) |
| APB | Advanced Processing Build |
| APB | Asia Pacific Board (IEEE) |
| APB | Analytical Processing Benchmark |
| APB | Alpha Phi Beta (fraternity) |
| APB | Association pour la Promotion des Batwa (French) |
| APB | Anti-Phase (domain) Boundary (also seen as APDB) |
| APB | Anti Pirate Bureau (Swedish Antipiratbyrån) |
| APB | Ambulatory Blood Pressure |
| APB | American Part-Blooded Horse Registry |
| APB | Approved Program Baseline |
| APB | Associated Press Broadcasters |
| APB | Afghanistan Programming Body |
| APB | Anderson Pipe Band (Tulsa, Oklahoma) |
| APB | Associacao Portuguesa de Biologos (Portuguese: Portuguese Association of Biology) |
| APB | Avionics Planning Baseline |
| APB | Acquisition Project Baseline |
| APB | Amyloid Beta A4 Precursor Protein-Binding |
| APB | Adductor Pollicis Brevis (medical; hand muscle) |
| APB | Active Position Backward |
| APB | Army Packaging Board |
| APB | Athens Park Bloods (gang) |
| APB | A3I Project Baseline |
| APB | Anti Personnel Blast |
| APB | American Policy Board |
| APB | ATM Performance and Billing (Sprint) |
| APB | Automation Policy Board |
| APB | Antenna Pointing Buffer |
| APB | Ayr-Paris Band (Ontario, Canada) |
| APB | Additional Policy Benefit (Insurance) |