| Abbreviation | Definition |
|---|---|
| WKL | World Kickboxing League |
| WKLL | Western Kansas Liberty League |
| WKLL | Western Kentucky Little League |
| WKN | World Kickboxing Network |
| WKO | World Karate Organization |
| WKPF | World Karate-Do Promotion Fund |
| WKPF | World Ker Plunk Federation |
| WKR | White Knuckle Racing |
| WKRA | Western Kentucky Recreation Association |
| WKRL | West Kent Rifle League |
| WKRT | White Knuckle Racing Team |
| WKSA | World Kuk Sool Association |
| WKSL | Western Kentucky Soccer League |
| WKU | World Karate Union |
| WKU | World Kickboxing Union |
| WKWL | West Kentucky Wrestling League |
| WKYA | West Kempsville Youth Athletics |
| WLA | World Lacrosse Association |
| WLA | World Lottery Association |
| WLAA | Western Lakes Athletic Association |