| AAEB | Alumni Association Executive Board✓ Verified | Association, Education, Institute |
| AAEE | Aero and Astro Engineering Education✓ Verified | Education |
| AAEF | Albanian-American Enterprise Fund✓ Verified | Finance, Fund, Investment |
| AAEI | American Association of Exporters & Importers✓ Verified | Business, Organization, Trade |
| AAEO | Affirmative Action/Equal Opportunity✓ Verified | Business, Framework, Policy |
| AAES | Aircraft Assisted Escape System✓ Verified | Military, Safety, System, Air Transport, Aircraft |
| AAESDA | Association of Architects, Engineers, Surveyors, and Draughtsmen of Australia✓ Verified | Association, Organization |
| AAF | Army Air Forces✓ Verified | Military, Air Force, Army, Defence |
| AAFA | Antique Americana Folk Art✓ Verified | Art |
| AAFC | Agriculture and Agri-Food Canada✓ Verified | Agriculture, Government, Department, Food |
| AAFC | All-America Football Conference✓ Verified | Event, Sports, Football, Team |
| AAFC | Australian Air Force Cadets✓ Verified | Military, Air Force, Organization |
| AAFCE | Allied Air Forces Central Europe✓ Verified | Military, Air Force |
| AAFCO | Association of American Feed Control Officials✓ Verified | Agriculture, Association, Regulatory Body |
| AAFCO | Association of American Plant Food Control Officials✓ Verified | Agriculture, Organization |
| AAFE | AeroAssist Flight Experiment✓ Verified | Experiment, Space, Technology, Space Travel, Spacecraft |
| AAFI | All American Foods, Inc. | Business, Company, Food |
| AAFN | Alternative Agri-Food Networks✓ Verified | Agriculture, Food, Marketing |
| AAFT | Asian Academy of Film & Television✓ Verified | Education, Academy, Films |
| AAGR | All-American Girl Racing✓ Verified | Games, Sports, Motorsports, Tournament |
| AAGS | Army Air-Ground System✓ Verified | Military, Air Force, Army, Defence, Weapon, System, Technology |
| AAH | Adopt A Highway✓ Verified | Movie |
| AAH | Adopt-A-Highway✓ Verified | Environment, Program, Transport, Road Transport, Route |
| AAHE | American Association for Health Education✓ Verified | Association, Education, Health, Fitness, Organization |
| AAHPER | American Association for Health, Physical Education, and Recreation✓ Verified | Association, Health, Fitness |
| AAHPERD | American Alliance for Health, Physical Education, Recreation and Dance✓ Verified | Health, Fitness, Organization |
| AAHPERDS | American Association for Health, Physical Education, Recreation, Dance and Sport✓ Verified | Education, Health, Fitness, Organization, Sports |
| AAHS | Academy for Allied Health Sciences✓ Verified | Education, Academy, Health, Medical, Science |
| AAI | Africa-America Institute✓ Verified | Education, Institute |
| AAI | Airports Authority of India✓ Verified | Government, Regulatory Body, Organization, Transport, Air Transport, Airport |
| AAI | Authentication and Authorization Infrastructure✓ Verified | Software, System, Technology, Security |
| AAIA | Aden-Abyan Islamic Army✓ Verified | Military, Army, Organization, Terrorism |
| AAIB | Aircraft Accident Investigation Bureau✓ Verified | Agency, Industry, Aviation |
| AAIP | Alumni Affairs and International Programs✓ Verified | Education, Program |
| AALA | American Automobile Labeling Act✓ Verified | Legal, Policy, Transport, Automobile |
| AALG | Automotive Aftermarket Liaison Group✓ Verified | Group, Transport, Automobile |
| AAM | Ayushman Arogya Mandir✓ Verified | Facility, Health, Medical, Hospital |
| AAMA | American Architectural Manufacturers Association✓ Verified | Architecture, Association, Construction, Manufacturing |
| AAMB | Al-Aqsa Martyrs' Brigades✓ Verified | Military, Army, Group |
| AAMB | All-American Marching Band✓ Verified | Education, Music, Band |
| AAMI | Age-Associated Memory Impairment✓ Verified | Medical, Disease |
| AAMO | Asian Association of Management Organisations✓ Verified | Association, Business, Management |
| AAPAR | American Association for Physical Activity and Recreation✓ Verified | Education, Health, Fitness, Organization |
| AARRR | Acquisition, Activation, Retention, Referral, Revenue✓ Verified | Business, Framework, Performance, Project |
| AASU | All Assam Students' Union✓ Verified | Education, Group, Organization, Union |
| AATWIN | Alliance Against Trafficking in Women and Children in Nepal✓ Verified | Organization, NGO |
| AAW | Anti-Air Warfare✓ Verified | Military, Air Force, Army, Defence, Navy, Weapon, Transport, Air Transport, Aircraft, Airport |
| AAW | Anti-Aircraft Warfare✓ Verified | Military, Air Force, Army, Defence, Navy, Weapon, Transport, Air Transport, Aircraft, Airport |
| ABODM | American Board of Disaster Medicine✓ Verified | Medical |
| AC | Air Conditioner / Air Conditioning✓ Verified | Electronic Devices |