FK or fk may refer to:

Arts and entertainment

* Flyer Killer, fictional automated robots in the Terminator (franchise), ''Terminator'' film franchise * Fox Kids, a former American children's television programming block * Funky Kong, a video game character

Place

* FK postcode area, UK, centred on Falkirk in Scotland. * Falkland Islands, FIPS PUB 10-4 territory code and ISO 3166 digram **.fk, country code top-level domain (ccTLD) for the Falkland Islands.

Other uses

* First aid kit * First Corridor rail coach * Football team, Football Club, abbreviated "FK" in Slavic and Balkan countries * Foreign key, in database design * Forward kinematics, in robotics and animation, the use of kinematic equations to find the position of an articulated object * Fuck, an English-language vulgarity * Africa West Airlines (IATA airline designator FK) * Finders, keepers, Finders Keepers * kinetic friction, in physics, mechanics {{disambiguation