| Acronym | Definition |
|---|
| CAAB | Certified Applied Animal Behaviorist |
| CAAB | Civil Affairs Battalion |
| CAAB | Cisco Aironet Advanced Wireless Bridging |
| CAAB | Campaign for the Accountability of American Bases (UK) |
| CAAB | Civil Aviation Authority of Bangladesh |
| CAAB | Capital Area Asset Building Corporation |
| CAAB | Codes for Australian Aquatic Biota |
| CAAB | Cute As A Button |
| CAAB | Centro Agro Alimentare Bologna |
| CAAB | Collective Agreement Arbitration Bureau (Canada) |
| CAAB | Certified Australian Angus Beef Pty. Ltd. |
| CAAB | Call Accounting and Billing |
| CAAB | Canadian Advertising Advisory Board |
| CAAB | California Apricot Advisory Board |
| CAAB | Communauté d'Agglomération de l'Aéroport du Bourget (French: Agglomeration Community of Le Bourget airport; Le Bourget, France) |
| CAAB | Colstrip Area Association of Business (Montana) |
| CAAB | Command Assignment Advisory Board |