| Rank | Abbreviation | Meaning |
|---|
| ***** | WCAS | Weinberg College of Arts and Sciences
| |
| *** | WCAS | Wellington Christian Apologetics Society
| |
| *** | WCAS | Weakly Coordinating Anions
| |
| *** | WCAS | World Council of Arya Samaj
| |
| ** | WCAS | West Coast Analytical Service
| |
| ** | WCAS | Weather, Climate, and Society
| |
| ** | WCAS | Warfighter Communication Assessment System
| |
| * | WCAS | World College for Advanced Study
| |
| * | WCAS | Woods College of Advancing Studies
| |
| * | WCAS | Winnebago County Animal Services
| |
| * | WCAS | West Chester Area School
| |
| * | WCAS | Waterloo Centre for Atmospheric Sciences
| |
| * | WCAS | West Coast Archaeological Services
| |
| * | WCAS | Washoe County Animal Services
| |
| * | WCAS | Water Conservation Areas
| |
| * | WCAS | Web Clipping Applications
| |
| * | WCAS | Westmorland County Agricultural Society
| |
| * | WCAS | West Central Airshed Society
| |
| * | WCAS | West Coast Analytical Services
| |
| * | WCAS | Waste Collection Authorities
| |
| * | WCAS | Washington Center for Aging Services
| |
| * | WCAS | West Coast All Stars
| |
| * | WCAS | West Coast Alternatives Society
| |
| * | WCAS | West Coast Aquatic Safaris
| |
| * | WCAS | Washington Crossing Audubon Society
| |