| Abbreviation | Definition |
|---|---|
| WCRT | Whooping Crane Recovery Team |
| WCS | Wildlife Conservation Society |
| WCS | Worldwide Christian Schools |
| WCSD | World Council on Sustainable Development |
| WCSI | Westmoreland Case Management And Supports, Inc. |
| WCSL | Worldwide Center for the Study of Leif |
| WCSN | Whole Child Service Network |
| WCSP | Wildlife Conservation Society of the Philippines |
| WCSR | Women and Children's Support Resources |
| WCST | Wildlife Conservation Society of Tanzania |
| WCSV | Wildlife Center of Silicon Valley |
| WCSZ | Wildlife Conservation Society of Zambia |
| WCT | West Coast Trail |
| WCT | World Chelonian Trust |
| WCTA | Western Coal Transportation Association |
| WCTF | Women of Color Task Force |
| WCTF | World Children's Transplant Fund |
| WCTI | Workers' Compensation Trust of Illinois |
| WCTU | Washington Council of Trout Unlimited |
| WCTU | Women's Christian Temperance Union |