| Abbreviation | Definition |
|---|---|
| WITR | West Island Tournament Report |
| WITW | Women in the Wind |
| WIUA | West Indies Umpires Association |
| WIVI | Weighttraining In Ventnor Isle-of-wight |
| WIVL | Workers International Vanguard League |
| WIWF | World Independent Wrestling Federation |
| WIWG | When It Was a Game |
| WIYC | Washington Island Yacht Club |
| WIYC | Western Isles Yacht Club |
| WJ | World Junior Record |
| WJBF | World Junior Boxing Federation |
| WJC | World Junior Championship |
| WJC | World Juniors Championship |
| WJCC | World Junior Curling Championships |
| WJD | World Juggling Day |
| WJF | Washtenaw Junior Football |
| WJF | Winnipeg Juggling Festival |
| WJF | Woodinville Junior Football |
| WJF | World Judo Federation |
| WJFA | Woodinville Junior Football Association |