| Abbreviation | Definition |
|---|---|
| WAKO | Wisconsin Area Killifish Organization |
| WAKO | World Association of Kickboxing Organizations |
| WALG | World Association of Left-handed Golfers |
| WAM | Winter Activation Meeting |
| WANG | What A Night Of Gaming |
| WAOC | West Anglian Orienteering Club |
| WAOG | West Anglia Outdoor group |
| WAPL | Women's Amateur Public Links, a USGA Championship |
| WAPO | Water Polo |
| WAR | Wilmington Adventure Racers |
| WAR | Win Above Replacement |
| WAR | Winter Adventure Race |
| WARA | Welsh Amateur Rowing Association |
| WARD | We All Real Demons |
| WARG | Waterloo Aerial Robotics Group |
| WARP | Wargaming And Role Playing |
| WARP | Wins Above Replacement Player |
| WARS | Wicked Attack Recon Sportscar |
| WAS | Washington, DC, sports team |
| WASA | Westborough Athletic and Social Association |