| Acronym | Definition |
|---|
| WHA➣World Hockey Association (merged with the National Hockey League in 1970s) |
| WHA➣World Health Assembly |
| WHA➣World Heritage Academy (travel agency; Turkey) |
| WHA➣Web Hosted Acrobat |
| WHA➣World Headache Alliance |
| WHA➣Western Hemisphere Affairs (US Department of State) |
| WHA➣Worcester Housing Authority (Worcester, MA) |
| WHA➣Wilmington Housing Authority (Delaware) |
| WHA➣Western Health Advantage |
| WHA➣World Health Academy (Switzerland) |
| WHA➣Tungsten Heavy Alloy (alloys used in weapons production, especially as penetrators) |
| WHA➣Wildlife Habitat Area |
| WHA➣Wyoming Hospital Association |
| WHA➣World Heroes Anthology (gaming) |
| WHA➣Whole-House Automation |
| WHA➣Wiring Harness Assembly |
| WHA➣Waterloo Housing Association (UK) |
| WHA➣Wickenburg Healthcare Alliance (Arizona) |
| WHA➣Water Hammer Arrestor (plumbing) |
| WHA➣Women's Hospitals Australia |
| WHA➣Western Hardwood Association |
| WHA➣Walkaloosa Horse Association |
| WHA➣Wilson, Hewitt & Associates, Inc (Haverford, Pennsylvania) |
| WHA➣Western Hockey Association |
| WHA➣Weapons Holding Area |
| WHA➣Windsor Housing Authority |
| WHA➣Women's Health and Cancer Rights Act of 1998 |