AHAA
| Acronym | Definition |
|---|---|
| AHAA | Association of Hispanic Advertising Agencies |
| AHAA | American Hearing Aid Associates |
| AHAA | Andalusian Horse Association of Australasia (est. 1973; Torquay, Victoria, Australia) |
| AHAA | Affordable Housing Action Alliance (est. 1997) |
| AHAA | Adolescent Health and Academic Achievement Study |
| AHAA | Ancient Healing Arts Association (alternative medicine; various locations) |