| IAFS | I A F S International Association of Fitness Sciences 
| Others |
| IAFS | Ice Accretion Forecasting System
| Others |
| IAFS | Immigration and Asylum Fingerprint System
| Others |
| IAFS | India Africa Forum Summit
| Others |
| IAFS | InfoSec Awareness for Sales
| Others |
| IAFS | Inhibit Arabic Form Shaping
| Others |
| IAFS | Intangible Asset Finance Society
| Others |
| IAFS | Integrated Air Fuel System
| Others |
| IAFS | Intelligent Adaptive Front Lighting System
| Others |
| IAFS | Internal Auxiliary Fuel System
| Others |
| IAFS | International Animated Film Society
| Others |
| IAFS | International Association of Fitness Sciences
| Others |
| IAFS | International Association of Forensic
| Others |
| IAFS | International Association of Forensic Science
| Others |
| IAFS | International Association of Forensic Sciences
| Others |
| IAFS | International Aviation Forecast Summit
| Others |
| IAFS | Irish Archaeology Field School
| Others |