| Acronym | Definition |
|---|
| AAHA➣American Animal Hospital Association |
| AAHA➣Acetohydroxamic Acid (drug) |
| AAHA➣Alexandria Area Hockey Association |
| AAHA➣Atlantic Amateur Hockey Association |
| AAHA➣African American Holiday Association |
| AAHA➣American Association of Homes for the Aging (now American Association of Homes and Services for the Aging, AAHSA) |
| AAHA➣Association of Alaska Housing Authorities |
| AAHA➣American Amputee Hockey Association |
| AAHA➣American Academy of Healthcare Attorneys |
| AAHA➣Alamo Arabian Horse Association (Texas) |
| AAHA➣American Appendix Horse Association |
| AAHA➣Allegany Area Historical Association |
| AAHA➣Alberta Amateur Hockey Association |
| AAHA➣Awaiting Action Higher Authority |
| AAHA➣Alachua Arabian Horse Association |
| AAHA➣Alamo Area Hospitality Association (San Antonio, TX) |
| AAHA➣African-American Heritage Association |
| AAHA➣American Association of Handwriting Analysis |
| AAHA➣American Arabian Horse Association |
| AAHA➣American Academy of Health Administration |
| AAHA➣American Amateur Holdem Association |