| Abbreviation | Definition |
|---|---|
| AFA | All For Animals |
| AFAC | Alberta Farm Animal Care |
| AFLAS | Asian Federation of Laboratory Animal Science |
| AFRMA | American Fancy Rat and Mouse Association |
| AFRP | Animal Friends Rescue Project |
| AFTA | All For The Animals |
| AGSD | Animal Genome Size Database |
| AH | Andalusian Horse |
| AH | Animal Health |
| AH | Animal Herders |
| AH | Animal Hospital |
| AHA | Animal Health Act |
| AHAN | Asians for Humans Animals and Nature |
| AHCD | Animal Health Care Denver |
| AHCM | Animal Health Care of Myerstown |
| AHDO | Animal Health Divisional Office |
| AHEAD | Animal Health for the Environment and Development |
| AHHHHA | Animals Helping Humans and Humans Helping Animals |
| AHHHHA | Animals Helping Humans Humans Helping Animals |
| AHIDF | Animal Husbandry Infrastructure Development Fund |