| Abbreviation | Definition |
|---|---|
| AMDUCA | Animal Medicinal Drug Use Clarification Act |
| AMDUCA | Animal Medicinal Drug Use Clarification Act Of |
| AMRO | American Robin |
| AMTM | Animals Matter To Me Mumbai |
| AMTRA | Animal Medicines Training Regulatory Authority |
| ANA | Abbreviated New Animal |
| ANAC | Animal Nutrition Association of Canada |
| ANCF | Animal Nature Conservation Fund |
| ANI | Animal News Item |
| ANPC | Animal Nutrition and Physiology Center |
| ANPC | Animal Nutrition Physiology Center |
| ANU | Animal Narcotic Unit |
| AOFW | Animals Of Farthing Wood |
| AOTN | Animals of the Night |
| APA | Animal Protective Association |
| APAC | Animal Pack Adaptable carrier |
| APAF | Animals Pride And Freedom |
| APCC | Animal Poison Control Center |
| APCSM | Animal Protection Center of Southeastern MA |
| APCSM | Animal Protection Center of Southeastern Massachusetts |