| Abbreviation | Definition |
|---|---|
| AIDG | Anderson Internet Development Group |
| AIDG | Appropriate Infrastructure Development Group |
| AIDP | Aboriginal Infant Development Program |
| AIDP | Aboriginal Infant Development Programs |
| AIDP | Army Indigenous Development Program |
| AIGD | Adventures in Game Development |
| AIHD | African Institute for Health and Development |
| AIHD | ASEAN Institute for Health Development |
| AIIB | Asian Infrastructure Investment Bank |
| AIM | Action and Investment to defeat Malaria |
| AIRD | African Initiatives for Relief and Development |
| AIRD | Asian Institute for Rural Development |
| AIVD | Australian Institute of Vocational Development |
| AJAD | Asian Journal of Agriculture and Development |
| AJAD | Association Jeunesse Action Developpement (French: Youth Action Development Association) |
| AJDF | Asean Japan Development Fund |
| AJDS | African Journal of Development Studies |
| AJLD | Acquisition Journeyman Leadership Development |
| AKFED | Aga Khan Fund for Economic Development |
| ALCD | Academy for Learning and Character Development |