| Acronym | Definition |
|---|
| AAAD➣American Athletic Association of the Deaf (name changed to USADSF: United States of America Deaf Sports Federation) |
| AAAD➣Aromatic Amino Acid Decarboxylase |
| AAAD➣All Arms Air Defence |
| AAAD➣Area Agency on Aging & Disability |
| AAAD➣Administrative Actions and Appeals Division |
| AAAD➣Atlanta Animal Allergy and Dermatology (Atlanta, Georgia) |
| AAAD➣Advanced Attack Armament Division |
| AAAD➣Airborne Anti-Tank (Armor) Air Defense |