| WED |
Western Ecology Division (older link archive) |
| WEP |
Water and Environmental Programs (unable to verify 3/15) |
| WEPP |
Watershed Erosion Prediction Project |
| WETT |
Water-Energy Tech Team (changed to Energy-Water Nexus Crosscut Team) |
| WFEC |
Wildland Fire Executive Council |
| WFF |
Wallops Flight Facility |
| WFIRST |
Wide-Field Infrared Survey Telescope |
| WFIT |
Wildland Fire Information and Technology |
| WFLC |
Wildland Fire Leadership Council |
| WFMRDA |
Wildland Fire Management, Research, Development & Application (older link archive) |
| WFO IPCIS |
Washington Field Office Infrastructure Protection and Computer Intrusion Squad |
| WFPO |
Watershed and Flood Prevention Operations Program |
| WFW |
Watershed, Fish, Wildlife, Air & Rare Plants program (older link archive) |
| WH |
White House |
| WH&B |
National Wild Horse and Burro Program (older link archive) |
| WHA |
Bureau of Western Hemisphere Affairs (older link archive) |
| WHATIF |
Watershed Health Assessment Tools Investigating Fisheries |
| WHC |
Worker Health Charts |
| WHD |
Wage and Hour Division (older link archive) |
| WHIP |
Wildfires and Hurricanes Indemnity Program | Wildlife Habitat Incentive Program |
| WHISPers |
Wildlife Health Information Sharing Partnership (older link archive) |
| WHMO |
White House Military Office (defunct or inactive 1/17, WH transition) |
| WHOUA |
White House Office of Urban Affairs (defunct or inactive 1/17, WH transition) |
| WHP |
Office of Western Hemisphere Programs (unable to verify 6/19) | Workplace Health Program |
| WHTCC |
White House Transition Coordinating Council (unable to verify 2/18) |
| WHTI |
Western Hemisphere Travel Initiative |
| WHUSA |
Women's Health USA |