FFI

FFI may refer to:

Entertainment

 * Festival Film Indonesia, in Indonesian annual Film Festival
 * Final Fantasy (video game), or Final Fantasy I, 1987 video game
 * Final Fight (video game), 1989 fighting action video game

Organizations

 * Family Firm Institute
 * Fauna and Flora International, a conservation group
 * Fellow of the Flag Institute
 * Film Federation of India
 * Finlay Forest Industries, a defunct Canadian forest products company
 * Franciscan Friars of the Immaculate, a Roman Catholic institute of religious life
 * Frederikshavn fI, a Danish sport club
 * Free File, Inc., an American consortium of tax preparation companies
 * French Forces of the Interior (French: Forces Françaises de l'Intérieur), French resistance fighters during World War II
 * Fuel Freedom International, an American multi-level marketing company
 * Norwegian Defence Research Establishment (Norwegian: Forsvarets forskningsinstitutt), a Norwegian military R&D institute

Science and technology

 * Fatal insomnia, an extremely rare neurological disorder that leads to chronic insomnia and inevitable death
 * Foreign function interface, in computing

Other uses

 * ﬃ, a typographical ligature
 * Foia Foia language, spoken in Papua New Guinea