| Acronym | Definition |
|---|
| CASG➣Collaborative Antiviral Study Group |
| CASG➣Capability Acquisition & Sustainment Group (Australia) |
| CASG➣Commercial Activities Study Guide (DA PAM 5-20) |
| CASG➣Computer Audit Specialist Group (British Computer Society; UK) |
| CASG➣Carleton Academic Student Government (Canada) |
| CASG➣Coordinamento Assistenti Sociali Giustizia (Italian: Coordination Assistants Social Justice) |
| CASG➣Canadian Apheresis Study Group (plasma exchange) |
| CASG➣Civil Aviation Safety Group (UK) |