| Acronym | Definition |
|---|
| IFFI➣International Film Festival of India |
| IFFI➣Inventario Fenomeni Franosi in Italia (Italian: Inventory of Landslides in Italy) |
| IFFI➣International Finance Facility for Immunization (Global Alliance for Vaccines and Immunization) |
| IFFI➣Immortals Forever Forever Immortals |
| IFFI➣Insanity Forever Forever Insanity |
| IFFI➣Identification, Friend or Foe Interrogator |
| IFFI➣Intra-Abdominal Focal Fat Infarction |