| Acronym | Definition |
|---|
| OAAA➣Outdoor Advertising Association of America |
| OAAA➣Office of African American Affairs |
| OAAA➣Osaka Association of All Athletics (Japan) |
| OAAA➣Olympic Area Agency on Aging (Port Hadlock, WA) |
| OAAA➣Oceania Amateur Athletic Association (Australia) |
| OAAA➣Open Abdominal Aortic Aneurysm (cardiovascular medicine) |
| OAAA➣Out and About Australia (student program) |