| Abbreviation | Definition |
|---|---|
| WCLIB | West Coast Lumber Inspection Bureau |
| WCMA | Wood Component Manufacturers Association |
| WCO | World Council of Optometry |
| WCP | World Congress of Philosophy |
| WCP | World Council for Psychotherapy |
| WCSC | Window Covering Safety Council |
| WCTG | Western Cooperative Test Group |
| WCTM | Wyoming Council of Teachers of Mathematics |
| WCWA | Western Car Wash Association |
| WDA | Wisconsin Dental Association |
| WDDS | Worcester District Dental Society |
| WDHA | Westchester Dental Hygienists' Association |
| WDINY | Workforce Development Institute |
| WDOA | World Domain Owners Association |
| WEA | The Womens Educational Association |
| WEA | Workers Educational Association |
| WEAO | Water Environment Association of Ontario |
| WEF | Water Environment Federation |
| WERO | Workers Education and Research Organization |
| WEVA | The Wedding And Event Videographers Association |