| Abbreviation | Definition |
|---|---|
| WJT | Woodcreek Junior Timberwolves |
| WJT | World Junior Team |
| WJTC | Wailuku Junior Tennis Club |
| WJTI | Wimbledon Junior Tennis Initiative |
| WJV | Wellington Junior Varsity |
| WJV | WindJammer Village |
| WJW | Warren Junior Women |
| WJW | Webster Junior Warriors |
| WJWC | Williston Junior Woman' s Club |
| WJWC | World Junior Women's Championship |
| WJWL | Warren Junior Women's League |
| WKA | Washington Kitefliers Association |
| WKA | World Karting Association |
| WKA | World Kickboxing Association |
| WKA | World Kum-Do Association |
| WKAC | Wai- Kahala Athletic Club |
| WKAC | Western Kentucky Athletic Conference |
| WKB | Warrior Kings Battles |
| WKBW | Well Known Bible Witness |
| WKC | Woodbridge kart Club |