FI or fi may refer to:
Places Falkland Islands, a British Overseas Territory Finland (ISO country code FI) Finnish language (ISO 639 alpha-2 code "fi") .fi, top-level domain of Finland Province of Firenze, Italy
Arts, entertainment, and media fi (album), a 2005 album by Bibio Fi (TV series), a 2017 Turkish Internet TV series Fi (The Legend of Zelda), a character in the 2011 video game The Legend of Zelda: Skyward Sword Fi, the pitch equivalent to the fourth scale degree raised a half step, in the Solfège music education method Films Incorporated, a defunct educational movie company abbreviated to FI
Businesses and organizations Feminist Initiative (Sweden), a political party Finansinspektionen, the Financial Supervisory Authority in Sweden Forza Italia, an Italian political party Fourth International, an international communist organisation Franciscans International, an NGO at the United Nations Freudenthal Institute, a research institute that is part of Utrecht University Front de l'Indépendance, a Belgian resistance organization in World War II Icelandair (IATA code FI, from the old name of the company, Flugfélag Íslands) La France Insoumise, a French political party Financial Institution, establishment that focuses on the financial and/or monetary sector
Technology fi, a scripting command in the Bourne shell and its derivatives Fast Infoset, a standard for binary XML Infoset encoding Fuel injection, a system for introducing fuel into internal combustion engines High fidelity (disambiguation) (hi-fi) Lo-fi (disambiguation) Google Fi Wireless, a mobile virtual network operated by Google
Other uses
(fi), a typographical ligature Fecal incontinence Fi (letter), a Georgian letter Fiona Hammond (born 1983), Australian water polo player nicknamed "Fi"
See also "Fee-fi-fo-fum", the first line of an historical quatrain (or sometimes couplet) famous for its use in the classic English fairy tale "Jack and the Beanstalk" FEI (disambiguation) Fie (disambiguation) Phi (Φ), a letter of the Greek alphabet