FI

FI, Fi or fi can mean:

*Finland (ISO country code, FI)
*Finnish language (ISO 639 alpha-2, fi)
*.fi (top-level domain of Finland)
*the IATA code for Icelandair
*Forza Italia, an Italian political party
*Franciscans International, an NGO at the United Nations
*Functional Integration, an individual lesson in the Feldenkrais method
*The Fourth International
*The Feminist Initiative (Sweden)
*The album fi by Bibio
*a scripting command in the Bourne shell and its derivatives (bash)
*fi (fi) a common typographical ligature
*Forced induction
*Fuel injection
*Fi, a Star Wars Expanded Universe character
*A diminuitive of the feminine given name Fiona
*FI can also be internet slang for "Fuck It"
*the equivalent of fa sharp, the fourth note of the musical scale