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