FK may refer to:
- Falkland Islands: FIPS PUB 10-4 territory code and ISO 3166 digram
- First aid kit
- French Kiss (film), an American-made 1995 romantic comedy film set primarily in France
- A Foreign key in database design
- Africa West Airlines IATA airline designator
- Fox Kids
- Flyer Killer, a series of fictional automated robots in the Terminator series. They are miniature versions of the Aerial Hunter Killer of the future.
- FK, the abbreviation for football club most common in Balkan countries.
- FK postcode area centred on Falkirk in Scotland
- First Corridor coach
- Freddy Kruger
fk may refer to:
- Falkland Islands: country code top-level domain (ccTLD)
- Funky Kong, video game character