| Abbreviation | Definition |
|---|---|
| TVI | Tropical Veterinary Institute (University of Liege, Belgium) |
| TVJ | Tanzania Veterinary Journal |
| TVMA | Taipei Veterinary Medical Association |
| TVMA | Tennessee Veterinary Medical Association |
| TVMA | Texas Veterinary Medical Association |
| TWA | The Weird Animals |
| TWAS | Tail Wags Animal Sanctuary |
| U | Urine |
| UAL | Universal Animal Language |
| UBE | Unidentified Bird Emergency |
| UCD | University College, Dublin (Faculty of Veterinary Medicine) |
| UCSD | University of California at San Diego |
| UDX | Utility Dog Excellent |
| UEP | United Egg Producers |
| UEVH | Union of European Veterinary Hygienists |
| UEVP | Union of European Veterinary Practitioners |
| UFAW | Universities Federation for Animal Welfare |
| UFP | Urea Fermentation Potential |
| UHD | Useless Homeless Dog |
| UKASTA | United Kingdom Agricultural Supply Trade Association |