| Acronym | Definition |
|---|
| IFSA | International Foreign Students Association (Japan) |
| IFSA | Institute for Study Abroad |
| IFSA | International Fuzzy Systems Association |
| IFSA | Investment and Financial Services Association (Australia) |
| IFSA | International Frequency Sensor Association |
| IFSA | International Farming Systems Association |
| IFSA | International Financial Services Association |
| IFSA | Inertial Fusion Sciences and Applications |
| IFSA | International Flight Services Association |
| IFSA | Illinois Fire Safety Alliance |
| IFSA | International Free Skiers Association |
| IFSA | Inflight Food Service Association |
| IFSA | International Federation of Strength Athletes |
| IFSA | International Financial Services Authority |
| IFSA | Iran Freedom Support Act of 2006 |
| IFSA | International Freestyle Skaters Association |
| IFSA | Irish Federation of Sea Anglers |
| IFSA | International Fire Sprinkler Association |
| IFSA | Intumescent Fire Seals Association |
| IFSA | Ithaca Free Software Association (New York) |
| IFSA | International Federation of Sports Acrobatics |
| IFSA | International Furniture Suppliers Association |
| IFSA | International Forestry Student Association |
| IFSA | International Faculty and Staff Affairs |
| IFSA | International Forest Students' Association |
| IFSA | Internal Family Systems Association |
| IFSA | International Foundation for Social Adaptation |
| IFSA | Institut Français de Sécurité Aérienne (French: French Institute for Aviation Safety) |
| IFSA | International Funeral Science Association |
| IFSA | Italian Flight Safety Association |
| IFSA | Islamic Forum for Science and Arts (UK) |
| IFSA | International Financial Sector Authority (Antigua and Barbuda) |
| IFSA | International Forensic Strategic Alliance |
| IFSA | Iowa Financial Services Association |
| IFSA | International Freestyle Snocross Association (Belding, MI) |
| IFSA | Idaho Funeral Service Association |
| IFSA | International Federation of Shipmasters' Associations |
| IFSA | Idaho Financial Services Association |
| IFSA | In-Flight Sleep Analysis |
| IFSA | International Freestyle Sports Association |
| IFSA | Indiana Fire Sprinkler Association |
| IFSA | Internet Fax Study Association |
| IFSA | Institute of Family Studies Annual |
| IFSA | Institut für Soziale Arbeit eV |
| IFSA | Iron Fireman SA (Pty) Ltd. (South Africa) |
| IFSA | Illinois Fire Sprinkler Association |
| IFSA | Internal Food Safety Auditor |