| Acronym | Definition |
|---|
| AACA | Antique Automobile Club of America |
| AACA | Aneurysm of the Anterior Communicating Artery |
| AACA | Asian American Civic Association |
| AACA | Architects Accreditation Council of Australia |
| AACA | American Association of Clinical Anatomists |
| AACA | Afghan Assistance Coordination Authority |
| AACA | Alaska Air Carriers Association |
| AACA | Australian Association of Campus Activities |
| AACA | Asociación Argentina de Críticos de Arte |
| AACA | Australians Against Child Abuse |
| AACA | American Association of Certified Appraisers |
| AACA | Atlanta Area Compensation Association |
| AACA | Aircraft Armament Chiefs Association |
| AACA | Australian Acupuncture Association |
| AACA | African American Cultural Alliance (various locations) |
| AACA | Atlanta Air Cargo Association |
| AACA | Authentic Artifacts Collectors Association |
| AACA | Asian American Cultural Association |
| AACA | Asian American Contractors Association |
| AACA | American Alliance of Creditor Attorneys, Inc. |
| AACA | African-American Cultural Association |
| AACA | Armenian American Cultural Association, Inc. |
| AACA | Arizona Association of Crime Analysts |
| AACA | Army Airlift Clearance Authority |
| AACA | American Association of Certified Allergists |
| AACA | American Apparel Contractors Association |
| AACA | Artists Against Corporate Art |
| AACA | African American Cultural Awareness |
| AACA | American Academy of Cardiovascular Administrators |
| AACA | Ambient Atmosphere Conditions and Aging |
| AACA | Associate of the Association of Cost Accountants |
| AACA | American Academy of Consumer Attorneys |
| AACA | Airborne Antisubmarine Warfare Coordination Aircraft |
| AACA | Aberdeen Arts Centre Association (United Kingdom) |
| AACA | American Association of Creative Artists |
| AACA | Amphibious Auto Club of America |
| AACA | American Automobile Claims and Appraisals (Richardson, TX) |
| AACA | Alaskan Artifact Collectors Association |
| AACA | Atlantic Apparel Contractors Association, Inc. |
| AACA | Autopia Absentee Catalog Auction |