| Abbreviation | Definition |
|---|---|
| AAHP | American Alliance For Hardwood Plywood |
| AAHPER | American Alliance for Health Physical Education and Recreation |
| AAHS | American Alliance for Healthy Sleep |
| AAHSA | ASEAN Alliance of Health Supplement Associations |
| AAI | Atheist Alliance International |
| AAIB | African Alliance Investment Bank |
| AAIM | Alliance Against Intoxicated Motorists |
| AALAM | African American Leadership Alliance Milwaukee |
| AALAM | African American Leadership Alliance MKE |
| AALD | American Alliance for Labor and Democracy |
| AALM | American Alliance for Loan Management |
| AAM | Alliance of Automobile Manufacturers |
| AAMC | American Alliance for Medical Cannabis |
| AAME | Arts Alliance Mountain Empire |
| AAMPS | Audience Alliance Motion Picture Studios |
| AAMR | Alliance of Academic Musculoskeletal Radiologists |
| AANB | Alliance agricole du N B |
| AAOE | American Alliance of Orthopaedic Executives |
| AAOM | Autism Alliance of Michigan |
| AAPP | Alliance for Adolescent Pregnancy Prevention |