| Acronym | Definition |
|---|
| WTRA➣Wales Trekking and Riding Association |
| WTRA➣Western Tropical Atlantic |
| WTRA➣Welsh Trail Riders Association |
| WTRA➣Whitemarsh Township Residents Association (Lafayette Hill, PA) |
| WTRA➣Western Tidewater Radio Association (Smithfield, Virginia) |
| WTRA➣Whitstable Toy Run Association (UK) |
| WTRA➣Weapons Transfer |
| WTRA➣Wisconsin Therapeutic Recreation Association |
| WTRA➣Weyburn Terrace Residents Association (UCLA) |
| WTRA➣West Texas Repeater Association (El Paso, TX) |
| WTRA➣Washington Trail Riders Association (Vancouver, WA) |
| WTRA➣West Tennessee Reading Association |
| WTRA➣W-Tenants Rights Association |
| WTRA➣Western Tradition (course) |
| WTRA➣West Texas Ranch Adventure |
| WTRA➣Waste Tyre Regulation Act (South Africa) |
| WTRA➣Write Touch Readers' Award |
| WTRA➣Westbound Transpacific Rate Agreement |
| WTRA➣West Tennessee Railroad Authority |
| WTRA➣Wet Tuchtrecht Accountants |
| WTRA➣Weald Tenant Residents Association |
| WTRA➣Wishing To Remain Anonymous |
| WTRA➣Weak Translatability |
| WTRA➣Women's Team Roping Association |
| WTRA➣Welsh Trekking and Riding Association |
| WTRA➣Wildlife Tree Retention Area (Canada) |
| WTRA➣Waterside Towers Residents Association |
| WTRA➣Wyoming Team Roping Association |
| WTRA➣Working Together for Rural Action |
| WTRA➣World Truck Racing Association |