FAI

FAI may refer to:

* Fatal Accident Inquiry, a Scottish legal aspect, used when a fatal accident has occurred.
* Football Association of Ireland, for football (soccer) in the Republic of Ireland.
* FAI armoured car, a Soviet military vehicle of the early 1930s
* FAI Films, a defunct Australian film production company
* Financial Access Initiative, a research consortium
* Fairbanks International Airport (IATA code 'FAI'), a public airport near the city of Fairbanks, Alaska, United States
* Federación Anarquista Ibérica, "Iberian Anarchist Federation"
* Fédération Aéronautique Internationale, "International Aeronautics Federation"
* Fondo per l'Ambiente Italiano, "Italian Environment Fund"
* Friendly artificial intelligence
* Fully Automatic Installation, for non-interactive installation of the Debian GNU/Linux operating system
* French: "Fournisseur d'accès à Internet", Internet service provider, an organization that sells access to the Internet
* Spanish: "Frente Amplio de Izquierda", Broad Left Front, a political coalition in Peru
* Free Androgen Index
* Fixed Asset Investment, see Fixed asset and Fixed investment.
* First Article Inspection

Fai may refer to:
* Fay D. Flourite (alternate first name 'Fai'), a character from "TSUBASA: RESERVoir CHRoNiCLE"