| Abbreviation | Definition |
|---|---|
| WBCA | West Bengal Chess Association |
| WBCA | World Blitz Chess Association |
| WBI | White Bishop |
| WCA | World Chess Academy |
| WCBO | World Chess Boxing Organisation |
| WCC | World Chess Championship |
| WCCF | World Correspondence Chess Federation |
| WCCL | Wattenscheid Computer Chess League |
| WCF | World Chess Federation |
| WCN | World Chess Network |
| WCSC | World Chess Solving Championship |
| WECC | Washington Elementary Chess Champions |
| WFCC | World Federation for Chess Composition |
| WGCC | Willow Glen Chess Club |
| WGM | World Grand Master |
| WJCC | World Junior Chess Championship |
| WKI | White King |
| WKN | White KNight |
| WLCC | West Louisville Chess Club |
| WOLC | The World Organization Of Lightning Chess |