Posted in Health & Medicine, Organizations AAHA stands for American Animal Hospital Association AAHA stands for Acetohydroxamic Acid (drug) AAHA stands for Alexandria Area Hockey Association AAHA stands for Atlantic Amateur Hockey Association AAHA stands for African American Holiday Association AAHA stands for American Association of Homes for the Aging (now American Association of Homes and Services for the Aging, AAHSA) AAHA stands for Association of Alaska Housing Authorities AAHA stands for American Amputee Hockey Association AAHA stands for American Academy of Healthcare Attorneys AAHA stands for Alamo Arabian Horse Association (Texas) AAHA stands for American Appendix Horse Association AAHA stands for Allegany Area Historical Association AAHA stands for Alberta Amateur Hockey Association AAHA stands for Awaiting Action Higher Authority AAHA stands for Alachua Arabian Horse Association