| Abbreviation | Definition |
|---|---|
| PAHO | Pan American Health Organization |
| PAL | People and Animals Learning |
| PAM | Postapproval Monitoring |
| PASE | Premier Animal Science Event |
| PAVG | Peoria Area Veterinary Group |
| PAVMA | Pennsylvania Veterinary Medical Association |
| PAVTE | Pennsylvania Association of Veterinary Technician Educators |
| PAWS | Performing Animal Welfare Society |
| PAWS | Professional Animal Wellness Specialists |
| PB | Polar Bear |
| PBVC | Point Breeze Veterinary Clinic |
| PBVS | Palm Beach Veterinary Society |
| PC | Pony Club |
| PCL | Pale Colored Lizard |
| PCP | PhenCyclidine Piperidine |
| PCT | Pet Care Trust |
| PCWP | Pulmonary Capillary Wedge Pressure |
| PD | Prairie Dog |
| PDE | Pug Dog Encephalitis |
| PDI | Predator Defense Institute |