| Abbreviation | Definition |
|---|---|
| AIPVT | All India Pre Veterinary Test |
| AIVI | Associazione Italiana Veterinari Igientisti ( Italy) |
| AIVPA | Associazione Italiana Veterinari Piccoli Animali (Italian Small Animal Veterinary Association) |
| AK | Animal Kingdom |
| AKU | Asian Kennel Union |
| AM | Alpha Male |
| AMDUCA | Animal Medicines Drug Use Clarification Act (USA) |
| AMI | American Meat Institute |
| AMLC | Australian Meat and Livestock Council |
| AMP | Americans for Medical Progress |
| AMS | Australian Mammal Society |
| AMTA | American Massage Therapy Association |
| AMTRA | Animal Medicines Training and Regulatory Authority |
| AMVS | Aspen Meadow Veterinary Specialists |
| ANADA | abbreviated new animal drug application |
| ANMVI | Associazione Nazionale Medeci Veterinari Italiani |
| ANSI | American National Standards Institute |
| ANU | Animal Narcotic Unit |
| ANUS | Animals Need Universal Support |
| ANZCCART | Australian and New Zealand Council for the Care of Animals in Research and Teaching |