| Abbreviation | Definition |
|---|---|
| WHFA | Wyoming Health Funds Alliance |
| WHIA | World Health Imaging, Informatics, Telemedicine Alliance |
| WHIA | World Health Imaging, Informatics, & Telemedicine Alliance |
| WHLI | West Houston Leadership Institute |
| WHMA | Williamsburg, Virginia, Hotel & Motel Association |
| WHMA | Wiring Harness Manufacturer's Association |
| WHO | World Health Organization |
| WI | Woodwork Institute |
| WIACA | West Africa Insurance Companies Association |
| WIAO | Wood Industry Association of Oklahoma |
| WIBA | Wichita Independent Business Association |
| WIEA | Wisconsin Indian Education Association |
| WIFA | Western Illinois Firefighters Association |
| WIFN | Women In Finance Network |
| WILG | Washington International Librarian's Group |
| WIMA | Writing Instrument Manufacturers Association |
| WISPA | Westfields Infant School Parents Association |
| WISPA | Wireless Internet Service Providers Association |
| WISPA | Womens International Squash Players Association |
| WITA | Washington International Trade Association |