| Acronym | Definition |
|---|
| WRTA➣Western Reserve Transit Authority (Northeast Ohio) |
| WRTA➣Worcester Regional Transit Authority (Massachusetts) |
| WRTA➣World Religious Travel Association |
| WRTA➣Western Regional Transmission Association |
| WRTA➣Western Rural Telephone Association |
| WRTA➣Wind River Transportation Authority (Fremont County, Wyoming) |
| WRTA➣Western Region Tennis Association (Australia) |
| WRTA➣Waccamaw Regional Transportation Authority |
| WRTA➣Western Region Technical Attachment |
| WRTA➣Windham Rail Trail Alliance (Windham, NH) |
| WRTA➣Wire Rope Technology Aachen (Germany) |
| WRTA➣Wulftec Rotary Arm |
| WRTA➣Western Region Transmission Association |
| WRTA➣Wisconsin Retired Teachers Association (now Wisconsin Retired Educators' Association) |
| WRTA➣World Rally Team Association |
| WRTA➣Workshop on Real-Time Applications |
| WRTA➣Wild Rice Trail Association (Canada) |
| WRTA➣Western Railroad Traffic Association |
| WRTA➣Western Region Telephone Association |
| WRTA➣Wiltshire Rocks Tsunami Appeal (UK) |
| WRTA➣Winnipesaukee River Trail Association |
| WRTA➣Wainwright Retired Teachers' Association (Wainwright, AB, Canada) |
| WRTA➣West River Trail Association |