| Acronym | Definition |
|---|
| IFI | Irish Film Institute (est. 1943) |
| IFI | International Financial Institutions (IMF, World Bank, etc.) |
| IFI | Innovation First, Inc. (combat robotic equipment manufacturer) |
| IFI | Islamic Foundation of Ireland |
| IFI | Institutt For Informatikk (Department of Informatics, University of Oslo) |
| IFI | Instrumentation Facility Interface |
| IFI | Industrial Fasteners Institute (trade association) |
| IFI | Instituciones Financieras Internacionales (Spanish: International Financial Institutions) |
| IFI | International Fabricare Institute |
| IFI | InnerChange Freedom Initiative |
| IFI | Iglesia Filipina Independiente (Independent Philippine Church) |
| IFI | Invasive Fungal Infection |
| IFI | International Food Ingredients (publication) |
| IFI | Institut de la Francophonie pour l'Informatique (Hanoi, Vietnam) |
| IFI | Indiana Family Institute (Indianapolis, IN) |
| IFI | Intensive Family Intervention (behavioral health) |
| IFI | International Finance Institute |
| IFI | International Fixed Income |
| IFI | Istituti Finanziari Internazionali (Italian: International Financial Institutions) |
| IFI | International Federation of Interior Designers |
| IFI | International Flood Initiative |
| IFI | Institut de Formation International (French: International Training Institute) |
| IFI | Ingeniero Fisico Industrial (Mexico) |
| IFI | In-Flight Insertion |
| IFI | Inspection Follow-Up Item |
| IFI | Integrated Facilities and Infrastructure |
| IFI | Issued for Information |
| IFI | Internet Finance International |