| IAAF | Iaafinternational Association Of Athletic Federations 
| Others |
| IAAF | Illinois Association Of Agricultural Fairs
| Others |
| IAAF | Image Acquisition And Analysis Facility
| Others |
| IAAF | Independent Automotive Aftermarket Federation
| Others |
| IAAF | Intentionally Affronting Africans Forever
| Others |
| IAAF | Interim Access Assurance Fund
| Others |
| IAAF | International Amateur Athletic Federation
| Others |
| IAAF | International Amateur Athletic Foundation
| Others |
| IAAF | International Amateur Athletics Federation
| Others |
| IAAF | International Association of Athletic Federations
| Others |
| IAAF | International Association Of Athletics Federation
| Others |
| IAAF | International Association of Athletics Federations
| Others |