FN may refer to:
The FN FAL (French: Fusil Automatique Léger, English: Light Automatic Rifle), is a battle rifle designed by Dieudonné Saive and Ernest Vervier and manufactured by Fabrique Nationale d'Herstal (FN Herstal).
The FN P90, also known as the FN Project 1990, is a personal defense weapon (PDW) designed and manufactured by FN Herstal in Belgium.
The FN Five-seven, trademarked as the Five-seveN, is a semi-automatic pistol designed and manufactured by Fabrique Nationale d’Armes de Guerre-Herstal (FN Herstal) in Belgium.
The FN MAG is a Belgian 7.62 mm general-purpose machine gun, designed in the early 1950s at Fabrique Nationale (FN) by Ernest Vervier.
The FN 5.7×28mm is a small-caliber, high-velocity cartridge designed and manufactured by FN Herstal in Belgium.
The FN Minimi (short for French: Mini Mitrailleuse; "mini machine gun") is a Belgian 5.56mm light machine gun developed by Fabrique Nationale (FN) in Herstal by Ernest Vervier.
Fnatic (pronounced "fanatic" /fəˈnæt.ɪk/; also stylized as fnatic or FNATIC) is a professional esports organization headquartered in London, United Kingdom.