| 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) |