| ADAA | Abu Dhabi Accountability Authority 
| Others |
| ADAA | Adobe Design Achievement Awards
| Others |
| ADAA | African Development Aid Association
| Others |
| ADAA | Agility Dog Association of Australia
| Others |
| ADAA | Alberta Dental Assistants Association
| Others |
| ADAA | Alcohol and Drug Abuse Administration
| Others |
| ADAA | American Dental Assistants Association
| Others |
| ADAA | American Dodgeball Affiliates of America
| Others |
| ADAA | American Dodgeball Association of America
| Others |
| ADAA | Animal Drug Availability Act
| Others |
| ADAA | Animal Drug Availability Act of 1996
| Others |
| ADAA | Anxiety and Depression Association of America
| Others |
| ADAA | Anxiety Disorders Association of America
| Others |
| ADAA | Apni Duniya Apna Ashiana
| Others |
| ADAA | Armenian Dramatic Arts Alliance
| Others |
| ADAA | Art Dealers Association of America
| Others |
| ADAA | Asociacion Deportiva Autocross en Accion
| Others |
| ADAA | Asociatia Dealerilor Auto Autorizati
| Others |
| ADAA | Australian Development Assistance Agency
| Others |
| ADAA | Australian Digital Advertising Alliance
| Others |
| ADAA | Automobile Dealers Association of Alabama
| Others |
| ADAA | Aviation Machinist's Mate Airman Apprentice
| Others |