| 3P | Public-private partnership | |
| 438 | Advertisement Required | |
| 4WH | Why, When, Who, What | |
| A2030SD | Agenda 2030 Sustainable Development (UN) | |
| AACCD | African American Center for Cultural Development | |
| AACD | American Association for Counseling and Development | |
| AACD | ALFS Active Classification Development | |
| AAD | Academic and Athletic Development | |
| AAD | Agent Asset Development | |
| AADB | American Association for the Development of Bangou | |
| AADC | Ashland Area Development Corporation | |
| AADC | Alamo Area Development Corporation | |
| AADCP | ASEAN Australia Development Cooperation Program | |
| AADF | Albanian-American Development Foundation | |
| AADI | Action for Ability Development and Inclusion | |
| AADM | Associate Agency Development Manager | |
| AADP | Annexation Area Development Policies | |
| AADT | Aspiration Association for Development and Training | |
| AADU | Academic Assessment and Development Unit | |
| AAED | Arizona Association For Economic Development | |
| AAED | Autism Academy for Education and Development | |
| AAND | Aboriginal Affairs and Northern Development | |
| AANDC | Aboriginal Affairs Northern Development Canada | |
| AARD | Alberta Agriculture and Rural Development | |
| AARD | Academy for Advanced Research Development | |
