GK

GK or Gk may mean or refer to:

• Gk., an abbreviation for Greek, especially Greek language
• General knowledge
• GK Reid, an American fashion stylist and TV star of Bravo's Double Exposure
• Gabriel Knight, a series of adventure games
• Gallien-Krueger, an instrument amplifier company
• Gameknot, an online chess-playing website
• Garrison Keillor, an American radio show host
• Gawad Kalinga, an anti-poverty movement based in the Philippines
• Genghis Khan emperor of Asia
• Gigakelvin, an SI unit of temperature
• Gōdō gaisha, a type of Japanese business organization known as GK
• Goalkeeper, in sports short-hand
• Godskitchen, an international superclub and trance music brand
• Greater Kailash, New Delhi, India
• Guernsey, FIPS PUB 10-4 territory code
• Geilenkirchen, a German city
• Graham-Kapowsin High School in Pierce County, Washington
• GateKeeper (roller coaster), a Wing Coaster at Cedar Point amusement park