| Abbreviation | Definition |
|---|---|
| WBT | Wycliffe Bible Translators |
| WBTM | Wisconsin Books To Mongolia |
| WBTO | World Bartenders Training Organization |
| WBTS | Wycliffe Bible Translators Singapore |
| WBU | Wild Birds Unlimited |
| WBU | World Blind Union |
| WBWV | We Believe We Vote |
| WC | WildCare |
| WC | World Concern |
| WCA | Weingart Center Association |
| WCA | Western Community Action |
| WCAA | Western Classified Advertising Association |
| WCAA | Window Coverings Association of America |
| WCAC | Washington Coalition Against Censorship |
| WCAD | Winning Community Advantage Distributors |
| WCAE | Walker Center for Academic Excellence |
| WCAK | We Care About Kids |
| WCAN | Workers' Compensation Action Network |
| WCAP | World Community Autism Program |
| WCAS | Washington Crossing Audubon Society |