NFI
NFI stands for:
- Nederlands Forensisch Instituut ( Netherlands Forensic Institute ), a leading forensic institute in The Hague
- Net foreign investment
- Friends of Nature International
- Non-Football Injury
- Nuclear Fuel Industries , English name of the Japanese company Genshinenryō Kōgyō
- Nordfriisk Instituut based in Bredstedt
- former Fischbach train station (near Nuremberg) (DS100 code)