| WHA | Bureau of Western Hemisphere Affairs 
| Others |
| WHA | Tungsten Heavy Alloy
| Others |
| WHA | TV-21, Madison, Wisconsin
| Others |
| WHA | Walker Hackensack Akeley
| Others |
| WHA | Water-Side Automatic Heater
| Others |
| WHA | We Hate Acronyms
| Others |
| WHA | Web Hosted Acrobat
| Others |
| WHA | Websensei Hosting Alliance
| Others |
| WHA | Weird Hungry And Annoying
| Others |
| WHA | Western Haflinger Association
| Others |
| WHA | Western Health Advantage
| Others |
| WHA | Western Healthcare Alliance
| Others |
| WHA | Western Hemisphere Affairs
| Others |
| WHA | Western History Association
| Others |
| WHA | Wheel Hub Assembly
| Others |
| WHA | When Hull Arrived
| Others |
| WHA | William Hezmalhalch Architects
| Others |
| WHA | Wilmington Housing Authority
| Others |
| WHA | Wilson Heirgood Associates
| Others |
| WHA | Wilson Hewitt & Associates, Inc.
| Others |
| WHA | Wire Harness Assembly
| Others |
| WHA | Wisconsin Hospital Association
| Others |
| WHA | Women's Hockey Association
| Others |
| WHA | Woodland Hills Academy
| Others |
| WHA | Work Hard Anywhere
| Others |
| WHA | Work Health Act
| Others |
| WHA | World Hacker's Association
| Others |
| WHA | World Haiku Association
| Others |
| WHA | World Headache Alliance
| Others |
| WHA | World Health Assembly
| Others |
| WHA | World Heath Assembly
| Others |
| WHA | World Hepatitis Alliance
| Others |
| WHA | World History Association
| Others |
| WHA | World Hockey Association
| Others |
| WHA | Wright Heerema Architects
| Others |