| Abbreviation | Definition |
|---|---|
| ADIR | Advanced Digital Imaging Research |
| ADIS | Associateship in Documentation and Information Science |
| ADISRF | Associateship in Documentation and Information Science Research Fellowship |
| ADL | Activity of Daily Living |
| ADM | ADMissions |
| ADMI | Advanced Design and Manufacturing Institute |
| ADMS | Advanced Diploma in Management Studies |
| ADMU | Ateneo De Manila University |
| ADNU | Ateneo De Naga University |
| ADOS | Assistant Director Of Studies |
| ADR | Advanced Device Research |
| ADRP | African Diaspora Research Project |
| ADS | Academic Distribution Services |
| ADSI | Analogue Display Services Interface |
| ADSU | Adamawa State University Mubi |
| ADTI | Art and Drama Therapy Institute |
| ADTP | Assistant Directors Training Program |
| ADTP | Australian Digital Theses Program |
| ADU | American Digital University |
| ADUC | Adron Doran University Center |