| APAB | Acalanes Performing Arts Boosters 
| Others |
| APAB | Adjustable Pulmonary Artery Band
| Others |
| APAB | Agricultural Preservation Advisory Board
| Others |
| APAB | Aliansi Pelangi Antar Bangsa
| Others |
| APAB | All People Accessible Business
| Others |
| APAB | All Priests Are Bastards
| Others |
| APAB | All Primary All Backup
| Others |
| APAB | Archives of Physiology And Biochemistry
| Others |
| APAB | Arthritis Patient Advisory Board
| Others |
| APAB | Asia Pacific Advisory Board
| Others |
| APAB | Asian Pacific Association for Biomechanics
| Others |
| APAB | Assessment and Planning Appeal Board
| Others |
| APAB | Assigned Pedophile At Birth
| Others |
| APAB | Association For Performance Art Berlin
| Others |
| APAB | Association of Professional Architects of Belize
| Others |
| APAB | Associazione Produttori Apistici Bresciani
| Others |
| APAB | Asymmetrical Piezoelectric Annular Bimorph
| Others |
| APAB | Atlanta Planning Advisory Board
| Others |
| APAB | Atlanta Planning and Advisory Board
| Others |
| APAB | Au Pair Agentur Berger
| Others |