| Abbreviation | Definition |
|---|---|
| AHA | Ark Health in Action |
| AHA | Art Happens Anywhere |
| AHA | Art History Architecture |
| AHA | attitude harmony and achievement |
| AHA | Atty Hanz Abella |
| AHA | Authentic Hopeful Action |
| AHA | Avoid Hasty Abstractions |
| AHA | Awakening Honesty Action |
| AHA | Awareness Humility and Action |
| AHA | Ayaan Hirsi Ali |
| AHAA | Active Healthy and Aware a |
| AHAA | Adolescent Health and Academic Achievement |
| AHAA | Alliance Homeschool Accountability Association |
| AHAA | American Hearing Aid Associates |
| AHAA | Arabian Horse Association of Arizona |
| AHAA | Ashland High Arts Advocates |
| AHAA | Association of Historians of American Art |
| AHAAH | A Hawk and A Hacksaw |
| AHAAH | Auditory Hazard Analysis Algorithm for Humans |
| AHAAH | Auditory Hazard Assessment Algorithm for Humans |