FK

FK or fk may refer to:

Arts and entertainment

• Fox Kids, an American TV programming block (1990–2002)
• Funky Kong, a 1994 video game character

Language

• Finders keepers (English adage)
• 'Football Club', abbreviated "FK" in Slavic and Balkan countries
• Fuck, an English-language vulgarity

Places

• FK postcode area, central Scotland
• Falkland Islands, a British territory (ISO 3166/FIPS PUB 10-4 :<code>FK</code>)

Science and technology

• .fk, top-level Internet domain for the Falkland Islands
• Foreign key, in database design
• Forward kinematics, in robotics and animation
• Kinetic friction, in mechanics

Other uses

• First aid kit
• First Corridor rail coach
• Africa West Airlines (IATA airline designator FK)