IAHA
| 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) |