| Abbreviation | Definition |
|---|---|
| WCUF | Washington Credit Union Foundation |
| WCVC | Wildlife Care of Ventura County |
| WCVC | Wyoming Crime Victims Coalition |
| WCVI | William C. Velasquez Institute |
| WCWB | West Coast Well Being |
| WCWC | Western Canada Wilderness Committee |
| WCWC | White Crane Wellness Center |
| WCWV | Wellness Council of West Virginia |
| WCYP | Windy City Young Professionals |
| WDA | Wilson's Disease Association |
| WDCS | Whale and Dolphin Conservation Society |
| WDDS | Woodstock and District Developmental Services |
| WDF | Watershed Defense Fund |
| WDF | Whirling Disease Foundation |
| WDF | Working Dog Foundation |
| WDF | World Diabetes Foundation |
| WDHS | William Dean Howells Society |
| WDI | William Davidson Institute |
| WDI | Women's Debate Institute |
| WDI | Workforce Development Institute |