GK

GK or Gk may refer to:

Businesses and organizations

 * Gallien-Krueger, an instrument amplifier company
 * Gawad Kalinga, an anti-poverty movement based in the Philippines
 * Society for Orthodontic Dental Technology (German: Gesellschaft für Kieferorthopädische Zahntechnik), a professional body based in Germany
 * Jetstar Japan's IATA designator

Places

 * Geilenkirchen, a city in North Rhine-Westphalia, Germany, by vehicle registration code until 1971
 * Graham-Kapowsin High School, in Pierce County, Washington
 * Greater Kailash, New Delhi, India
 * Guernsey (FIPS PUB 10-4 territory code)

Sports

 * Goalkeeper
 * Goalkeeper (association football)
 * Goalkeeper (handball)
 * Goal keeper (netball)
 * Goalkeeper (water polo)
 * Vegas Golden Knights of the National Hockey League

Other uses

 * G. K. Chesterton, a Roman Catholic novelist and author
 * GK Barry, English influencer and presenter
 * Glucokinase, an enzyme that facilitates phosphorylation of glucose to glucose-6-phosphate
 * Gōdō gaisha, a type of Japanese business organization
 * GK, the gene encoding Glycerol kinase, a phosphotransferase enzyme
 * Guntur Kaaram, an 2024 Indian Telugu-language action drama film by Trivikram Srinivas