| Abbreviation | Definition |
|---|---|
| AAC | Adoption for All Children |
| AAC | AIDS Action Committee |
| AAC | American Alpine Club |
| AACC | American Association For Continuity Of Care |
| AACC | American Association of Cereal Chemists |
| AACC | Ann Arbor Community Center |
| AACCA | American Association of Cheerleading Coaches and Advisors |
| AACE | American Association for Cancer Education |
| AACF | African American Community Fund |
| AACF | Alexandria Area Community Foundation |
| AACF | Asian American Center of Frederick |
| AACG | American Association for Crystal Growth |
| AACH | American Academy on Communication in Healthcare |
| AACH | Arlington Alexandria Coalition for the Homeless |
| AACI | Association of American Cancer Institutes |
| AACI | Association of Americans and Canadians in Israel |
| AACIL | Ann Arbor Center for Independent Living |
| AACJ | Americans Against Corrupt Justice |
| AACL | Animal Anti Cruelty League |
| AACPDM | Academy for Cerebral Palsy and Developmental Medicine |