| Acronym | Definition |
|---|
| WTDA➣Warren Township Development Association (Indianapolis, IN) |
| WTDA➣Welsh Talent Development Academy |
| WTDA➣Waldorf Teacher Development Association (Detroit, MI) |
| WTDA➣Washington Tourism Development Authority (Washington, NC) |
| WTDA➣World Tree Dog Association (hunting dog competition group) |
| WTDA➣Weather Tactical Decision Aid |