| Abbreviation | Definition |
|---|---|
| IFES | Institute For European Studies |
| IFF | Institute for Families |
| IFF | Institute For Figuring |
| IFFC | Institute For Financial Crime |
| IFG | Institute for Government |
| IFGT | Institute For Global Transformation |
| IFGTB | Institute of Forest Genetics Tree Breeding |
| IFH | Institute For Hydromechanics |
| IFI | Illinois Family Institute |
| IFI | Indigenous Futures Institute |
| IFI | Insight Foresight Institute |
| IFI | Institute for Future Initiatives |
| IFI | Institute for Immunology |
| IFI | Institute for Inquiry |
| IFI | International Financial Institution |
| IFI | International Financial Institutions |
| IFI | Irish Film Institute |
| IFI | Issam Fares Institute |
| IFI | The Institute For Financial Integrity |
| IFIAS | International Federation Of Institutes For Advanced Studies |