| Abbreviation | Definition |
|---|---|
| ADFAA | Alberta Drama Festival Association ADFA |
| ADFP | Association des Distributeurs de Films de Patrimoine |
| ADFP | Association of Dance and Freestyle Professionals |
| ADFP | Association of Divorce Financial Planners |
| ADGA | American Dairy Goat Association |
| ADHA | American Dental Hygiene Association |
| ADHA | American Dental Hygienist Association |
| ADHA | American Dental Hygienists Association |
| ADHA | American Dwarf Hop Association |
| ADHP | Association of Depth Hypnosis Practitioners |
| ADI | Association for Direct Instruction |
| ADIH | Association des Industries d'Haiti |
| ADIP | Association Des Instructeurs de Plongée |
| ADJAA | American Disc Jockey Association ADJA |
| ADJI | Association De Jeunes Ivorians |
| ADLA | Alabama Defense Lawyers Association |
| ADLA | American Drum Line Association |
| ADLCJ | Association pour le Développement de la Langue et de la Culture Japonaise (French: Association for the Development of Japanese Language and Culture) |
| ADLF | Association Des Lactariums de France |
| ADMA | Association for Data-Driven Marketing & Advertising |