| AAHA | Accessible and Affordable Housing for All 
| Others |
| AAHA | Adopt a Homeless Animal
| Others |
| AAHA | Afro American Historical Association
| Others |
| AAHA | Alabama Affordable Housing Association
| Others |
| AAHA | Alamo Area Hospitality Association
| Others |
| AAHA | American Amputee Hockey Association
| Others |
| AAHA | American Animal Hospital Association
| Others |
| AAHA | American Appendix Horse Association
| Others |
| AAHA | Appleton Area Hockey Association
| Others |
| AAHA | Applied Archaeology and History Associates
| Others |
| AAHA | Arizona Amateur Hockey Association
| Others |
| AAHA | Association of Alaska Housing Authorities
| Others |
| AAHA | Association of Azerbaijan Handicraft Artists
| Others |
| AAHA | Atlantic Amateur Hockey Association
| Others |
| AAHA | Awaiting Action Higher Authority
| Others |