| Abbreviation | Definition |
|---|---|
| AAFF | Afghanistan American Friendship Foundation |
| AAFF | Alexis Arquette Family Foundation |
| AAMF | Adopt A Mother Foundation |
| AAMF | Army Aviation Museum Foundation |
| AAOF | American Academy of Optometry Foundation |
| AAPF | American Academy of Periodontology Foundation |
| AARF | Associated Asia Research Foundation |
| AASF | Adopt A Stream Foundation |
| AASF | African American Students Foundation |
| AASF | Association for Academic Surgery Foundation |
| ABCF | American Breast Cancer Foundation |
| ABDF | Australasian Blistering Diseases Foundation |
| ABEF | American Bald Eagle Foundation |
| ABF | American Bar Foundation |
| ABF | American Brain Foundation |
| ABF | Andrea Bocelli Foundation |
| ABF | Ann Bancroft Foundation |
| ABF | Anza Borrego Foundation |
| ABF | Arkansas Baptist Foundation |
| ABIF | Australian Beef Industry Foundation |