| Abbreviation | Definition |
|---|---|
| AACTA | Australian Academy of Cinema and Television Arts |
| AAFA | Antiques Americana Folk Art |
| AAFM | Anthology of American Folk Music |
| AAJ | All About Jazz |
| AALIYAH | An Amazing Loving Individual You'll Always Hold |
| AAM | Association of Anglican Musicians |
| AAMB | All About My Business |
| AAMB | All-American Marching Band |
| AAMC | Armory Arts and Music Center |
| AAMC | Asian American Music Conference |
| AAMF | Atlin Arts & Music Festival |
| AAMI | Afro American Music Institute |
| AAMM | All About Money Music |
| AAMPS | African American Music Preservation Society |
| AAMPS | Ann Arbor Music Performance Server |
| AAMS | American Accordion Musicological Society |
| AAMS | Asian American Music Society |
| AAMS | Auto Audio Mastering System |
| AAMV | Anime Action Music Vines |
| AAR | All-American Rejects |