| Abbreviation | Definition |
|---|---|
| AF | Attenuation Factor |
| AF | Anti Fungal |
| AF | Airframe |
| AF | Aft Fuselage |
| AF | Authority File |
| AF | Authentication Framework |
| AF | Airway Facilities |
| AF | Active Fifo |
| AFA | Ameture Football Association;Assistant Financial Advisor |
| AFA | Associate in Fine Arts |
| AFA | All Fluids Allowed |
| AFA | Airframe Assembly |
| AFA | American Freestyle Association |
| AFA | Allentown Footbag Association |
| AFA | American Family Association |
| AFA | Asatru Folk Assembly |
| AFA | American Ferret Association |
| AFA | American Farm Bureau Federation |
| AFA | Architecture Feasibility Assessment |
| AFA | Automatic Fire Alarm |
| AFA | Advanced First Aid |
| AFA | Accounting Firms Associated, Inc. |
| AFAA | Aerobic and Fitness Association of America |
| AFACTS | Automatic Facilities Test System |
| AFAD | Armed Forces Acquisition Document |
| AFADS | Automatic Force Adjustment Data System |
| AFAIM | Associate Fellow of the Australian Institute of Management |
| AFALD | Air Force Acquisition Logistics Division |
| AFAMPE | Air Force Automated Message Processing Exchange |
| AFAMS | Air Force Agency for Modeling and Simulation |
| AFAP | Attenuated Familial Adenomatous Polyposis |
| AFAR | Alliance For Aerobiology Research |
| AFAR | Association For Asian Research |
| AFAS | Associate of the Faculty of Architects and Surveyors |
| AFATDS | Advanced Field Artillery Tactical Data System |
| AFB | Acid Fast Bacillus |
| AFB | AortoFemoral Bypass |
| AFB | Acid Fast Bacilli |
| AFB | Air Force Base |
| AFB | Association of Food and Drug Officials |
| AFB | Acid-Fast Bacilli |
| AFBF | American Farm Bureau Federation |
| AFBJJ | Australian Federation Of Brasilian Jiu Jitsu |
| AFC | Asian Football Confederation |
| AFC | Automatic Frequency Control |
| AFC | Automatic Flight Control |
| AFC | Aerodynamic Flight Control |
| AFC | Air Force Cross |
| AFC | Association Football Club |
| AFC | Adelaide Football Corporation |