| Abbreviation | Definition |
|---|---|
| BVVS | British Veterinary Voodoo Society (spoof) |
| BVZS | British Veterinary Zoological Society |
| BWHA | British Wildlife Health Association |
| BWRC | British Wildlife Rehabilitation Council |
| BZ | Bronx Zoo |
| C | Canine tooth |
| C | Chimpanzee |
| C | Colt |
| C&C | Cubes & Coroplast |
| CAA | Center for Animal Alternatives (University of California, Davis) |
| CAAT | Canadian Animal Assistance Team |
| CAAT | Center for Alternatives to Animal Testing, Johns Hopkins |
| CABTSG | Companion Animal Behaviour Therapy Study Group |
| CACC | Center For Animal Care And Control |
| CADIA | Center for Animal Disease and Information Analysis (US Department of Agriculture) |
| CAE | Caprine Arthritis Encephalitis |
| CAFO | Concentrated Animal Feeding Operation |
| CAFO | Confined Animal Feeding Operation |
| CAHM | Center for Animal Health Monitoring (US Department of Agriculture) |
| CAHP | Center for Animal Health and Productivity (University of Pennsylvania) |