| Abbreviation | Definition |
|---|---|
| TAIEX | Technical Assistance Information Exchange Office (of EU, for prospective member States) |
| TAWS | World Association for Transport Animal Welfare and Studies (translation) |
| TB | Thoroughbred |
| TBA | Thoroughbred Breeders' Association |
| TBA | Tropical Biology Association |
| TBC | Texas Beef Council |
| TBC | Tonkinese Breed Club |
| TBD | Tick Borne Disease |
| TBDL | Tick Borne Disease Laboratory |
| TC | Teeth and Claws |
| TCVM | Traditional Chinese Veterinary Medicine |
| TD | Tasmanian Devil |
| TD | Terrier Down |
| TDHIA | Texas Dairy Herd Improvement Association |
| TDVC | Tibor Dipold Veterinary Clinic |
| TFA | Tenant Farmers Association |
| THC | Total Horse Care |
| THE | The Humane Environment |
| TIGER | Tailored Interactive Guidance on Employment Rights (resource of the Department of Trade and Industry) |
| TLC | Three Legged Cat |