| Acronym | Definition |
|---|
| IAHA➣International Air and Hospitality Academy (Vancouver, WA) |
| IAHA➣International Arabian Horse Association |
| IAHA➣International Association of Haunted Attractions |
| IAHA➣Illinois Association of Healthcare Attorneys (Naperville, IL) |
| IAHA➣International Association of Hospitality Accountants |
| IAHA➣Independent Aircraft Handling Association |
| IAHA➣Institute for the Advancement of Hawaiian Affairs (est. 1985) |