| Acronym | Definition |
|---|
| WAPA | Western Area Power Administration (DOE) |
| WAPA | Water and Power Authority (US Virgin Islands) |
| WAPA | Washington Automotive Press Association (Washington, DC) |
| WAPA | Washington Association of Professional Anthropologists (Washington, DC) |
| WAPA | Wisconsin Academy of Physician Assistants |
| WAPA | Washington Asphalt Pavement Association |
| WAPA | Washington State Academy of Physician Assistants |
| WAPA | Windows Azure Platform Appliance (Microsoft) |
| WAPA | Wisconsin Chapter American Planning Association |
| WAPA | Wyoming Association of Physician Assistants |
| WAPA | War in the Pacific National Historic Park (US National Park Service) |
| WAPA | We Are Perth Army (gaming clan) |
| WAPA | Worldwide Aircraft Propeller Association |
| WAPA | Wet Annular Poison Assembly |
| WAPA | War Against Popup Advertising (Thewapa.org) |