| Abbreviation | Definition |
|---|---|
| AFDT | Always Faithful Dog Training |
| AFTM | A Few Too Many |
| AGDLP | A Good Dog Loves People |
| AKC | Accelerated Knowledge for Canines |
| AKC | American Kennel Club |
| AOF | Area Of Fall |
| AOF | Area of Fall - is the area that a bird or training bumper lands when thrown for a mark that a dog is |
| AOF | The Area that a bird or training bumper lands when thrown for a mark that a dog is to retrieve |
| AOT | Amateur Owner Trainer |
| APB | Aggressive Pit Bull |
| APC | All Purpose Canine |
| APDR | American Preservation Dog Registry |
| APDT | Association of Pet Dog Trainers |
| APDT | Association of Professional Dog Trainers |
| APR | American Purebred Registry |
| ARM | Animal Rights Militia |
| ARNT | Angels Rescue of North Texas |
| AS | Australian Shepherd |
| ASFA | American Sighthound Field Association |
| ASPAVA | Animal Sueing Program of America for Veterernarian Authorities |