| Acronym | Definition |
|---|
| WTTA➣Washington Tow Truck Association |
| WTTA➣Women's Team Tennis of Austin (Texas) |
| WTTA➣Woking Town Twinning Association |
| WTTA➣Western Time Trials Association |
| WTTA➣Who Took Title As (legal documents) |
| WTTA➣Wynnum Table Tennis Association |
| WTTA➣West Texas Transportation Alliance |
| WTTA➣Wellington Teacher Trainees’ Association |
| WTTA➣Werribee Table Tennis Association |
| WTTA➣Wholesale Tobacco Trade Association (now defunct; UK) |
| WTTA➣West Tennessee Transplant Association |
| WTTA➣West Texas Teachers Association |
| WTTA➣Winning Techniques Training Academy |
| WTTA➣World Table Tennis Association |