| Acronym | Meaning |
| CAAP | Civil Aviation Advisory Publication |
| CAAP | Clean Air Action Plan (California) |
| CAAP | Command Assistance Assessment Program |
| CAAP | Common Avionics Architecture for Penetration |
| CAAP | Competency Assurance and Assessment Programme |
| CAAP | Competitive Alternative Acquisition Products (US DoD; est. 2009) |
| CAAP | Cornhusker Army Ammunition Plant |
| CAAP | County Adult Assistance Program (San Francisco, California) |