FFI
FFI stands for:
- Fatal Familial Insomnia, fatal familial insomnia
- Fauna & Flora International , international nature conservation association
- District heating research institute , association for district heating operators and manufacturers, Hanover
- Film Federation of India , Indian filmmakers' association, proposer of the Indian contribution to the respective Oscar / Best International Film
- Final Fantasy I , equivalent to Final Fantasy (computer game)
- Flexible production island , production logistics
- Forces françaises de l'intérieur (German- French Armed Forces inside ), anti-fascist troops fighting against German occupation in World War II
- Foreign Function Interface , interface for functions written in other programming languages
- Forsvarets forskningsinstitutt , research division of the Norwegian Armed Forces
- Franciscans of the Immaculate , Institute of Consecrated Life in the Roman Catholic Church
- Frozen Fish International , German food manufacturer, subsidiary of the Iglo Group
ffi stands for:
- Foia Foia (ISO-639-3 code), one of the Papuan languages spoken in Bamu Rural LLG , Western Province (Papua New Guinea) , Papua New Guinea
- ffi , one of the few three-letter ligatures (typography)
