| Abbreviation | Definition |
|---|---|
| WABL | West Akron Baseball League |
| WAC | We Are Camping |
| WAC | Wellington Aero Club |
| WAC | Western Athletic Conference |
| WAC | Wheaton Athletic Club |
| WAC | Wilderness Adventure Club |
| WAC | Wrestler Against Canada |
| WACA | West Australian Croquet Association |
| WACA | Western Australian Cricket Association |
| WACAC | Wansbeck and Cramlington Angling Club |
| WACAC | West Australian Coarse Angling Club |
| WACH | Western Athletic Conference Hockey |
| WACR | Weston Angling Club Runcorn |
| WACU | Wasserski Akrobatik Club Untersee |
| WACU | World All-Combat Union |
| WADA | Washington Area Darts Association |
| WADA | Wisconsin Athletic Directors Association |
| WADA | World Anti-Doping Agency |
| WADA | World AutoDuel Association |
| WADC | West Australian Darts Council |