| Abbreviation | Definition |
|---|---|
| IFCS | International Federation of Chopin Societies |
| IFCS | International Federation of Cynological Sports |
| IFD | International Federation of Denturists |
| IFE | Inayan Federation Of Eskrima |
| IFEA | International Federation of Endodontic Association |
| IFEB | International Federation of Employee Benefits |
| IFEM | International Federation for Emergency Medicine |
| IFF | International Feldenkrais Federation |
| IFF | International Floorball Federation |
| IFF | International Fur Federation |
| IFFA | International Federation of Film Archives |
| IFHE | International Federation Of Home Economics |
| IFHR | International Federation for Human Rights |
| IFHR | International Federation of Human Rights |
| IFI | International Federation of Interior |
| IFIC | International Federation Of Infection Control |
| IFIR | International Federation Of Iranian Refugees |
| IFKK | International Federation of Kyokushinkaikan Karate |
| IFM | International Federation of Mammalogists |
| IFMS | International Federation Majorettes Sport |