| AAPB | Academic Accommodations Policy Board 
| Others |
| AAPB | Advanced Acquisition Planning Board
| Others |
| AAPB | Aerobic Anoxyenic Phototrophic Bacteria
| Others |
| AAPB | Aerobic Anoxygenic Photoheterotroph Bacteria
| Others |
| AAPB | Aerobic anoxygenic phototrophic bacteria
| Others |
| AAPB | American Archive of Public Broadcasting
| Others |
| AAPB | American Association of Pathologists and Bacteriologists
| Others |
| AAPB | Asociatia Artistilor Plastici Bucuresti
| Others |
| AAPB | Association for Applied Psychophysiology and Biofeedback
| Others |