| Abbreviation | Definition |
|---|---|
| WINC | Wayfarer Ireland National Championships |
| WINGS | Worldwide Interactive Networking Game System |
| WIOL | Washington Interscholastic Orienteering League |
| WIP | We Ignore Phillies |
| WIPA | West Indies Players Association |
| WIPC | Whidbey Island Pony Club |
| WIPH | Wisconsin Prep Hockey |
| WIPS | Women In Paralympic Sport |
| WIRL | Woodcar Independent Racing League |
| WIRW | Whidbey Island Race Week |
| WISA | Wisconsin Squash Association |
| WISDOM | Women's Individual Self Defense And Offensive Maneuvers |
| WISL | Washington International Soccer League |
| WISL | World Indoor Soccer League |
| WISM | Women In Sport Management |
| WISO | Wisconsin Special Olympics |
| WIST | Women In Support Of Tyson |
| WIT | West Island Tournament |
| WITC | World Invitational Tennis Championships |
| WITO | Women In The Outdoors |