FN may refer to:

Arts, entertainment, and media

* Faking News, Indian news satire website * ''Financial News'', UK financial newspaper and news website * ''Finding Nemo'', a 2003 animated adventure comedy film by Disney and Pixar * ''Fortnite'', a game released in 2017 by Epic Games * ''Future Nostalgia'', a 2020 album by Dua Lipa

Businesses and brands

* FN Herstal or Fabrique Nationale de Herstal, a Belgian arms factory ** FN (automobile), cars produced by FN Herstal ** FN (motorcycle), motorcycles produced by FN Herstal * Royal Air Maroc Express (IATA airline designator FN)

Organizations

* Front National (France), a French political party * Front National (French Resistance), a World War II French Resistance group * Front National (Belgium), a Belgian political party * ''Fuerza Nueva'', the name of a former succession of political parties in Spain * ''Forza Nuova'', an Italian political party

Other uses

* First Nations in Canada, the predominant indigenous peoples in Canada, south of the Arctic Circle * Fn key, a key found on some compact keyboards * Fibronectin, a glycoprotein involved in cell adhesion and growth * Function (computer science) * Fireman, an enlisted rate in the United States Navy and United States Coast Guard * Footnote, in texts {{disambiguation