| Acronym | Definition |
|---|
| IAF | Indian Air Force |
| IAF | International Accreditation Forum |
| IAF | I Alla Fall (Swedish: in any case, anyway) |
| IAF | Israeli Air Force |
| IAF | Inter-American Foundation |
| IAF | International Astronautical Federation |
| IAF | International Association of Facilitators |
| IAF | Industrial Areas Foundation |
| IAF | Indian Armed Forces |
| IAF | International Accreditation Forum, Inc. |
| IAF | Internet Address Finder (website) |
| IAF | International Apparel Federation |
| IAF | International Aikido Federation |
| IAF | Initial Approach Fix |
| IAF | Institute for Alternative Futures (Alexandria, Virginia) |
| IAF | Italian Air Force |
| IAF | Fraunhofer Institute for Applied Solid State Physics |
| IAF | Iraqi Armed Forces |
| IAF | Iraqi Accord Front |
| IAF | Indonesian Air Force |
| IAF | Islamic Academy of Florida |
| IAF | International Association of Firefighters |
| IAF | I Am Fine |
| IAF | International Animation Festival |
| IAF | Inuit Art Foundation (Ottawa, Canada) |
| IAF | International Abolitionist Federation |
| IAF | Intra Abdominal Fat |
| IAF | Interactive Facility (Cray-Cyber computers) |
| IAF | International Aeronautical Federation |
| IAF | Internet Administration Framework (Solect Technologies) |
| IAF | Investment Advisory Facility |
| IAF | Internet Aware Fax |
| IAF | International Anglican Fellowship |
| IAF | Interfaith Alliance Foundation |
| IAF | Image Access Facility |
| IAF | Office of Information for the Armed Forces |
| IAF | International Anarchist Federation |
| IAF | Installation Activity Furnished |
| IAF | Intelligent Alarm Filtering (Telcordia) |
| IAF | Improved Assault Fire |
| IAF | Information of Armed Forces |
| IAF | International Aquaculture Foundation |
| IAF | Interactive Analysis Facility |