GK or Gk may refer to:
GKN plc is a British multinational automotive and aerospace components company headquartered in Redditch, Worcestershire.
GKIDS is an American film distributor based in New York with, according to the Los Angeles Times, a focus on "sophisticated, indie" animation.
GKN Driveline is a multinational automotive components manufacturer specialising in driveline technologies.
GKS Katowice (Polish pronunciation: [katɔˈvitsɛ]; GKS stands for Górniczy Klub Sportowy ; "Miners Sporting Club") is a Polish football club based in Katowice, Poland.
GKK Etzenricht, abbreviation for Gleichstromkurzkupplung Etzenricht, that means Etzenricht HVDC-back-to-back station, was an HVDC back-to-back facility near Etzenricht in the district of Neustadt an der Waldnaab in Bavaria, Germany.
GKS Tychy is a Polish professional football club, based in Tychy, Poland, that plays in the Polish I Liga.
PGE GKS Bełchatów [ˌpɛɡʲɛˈʔɛ ˌɡʲɛkaˈɛs bɛwˈxatuf] is a professional football club that competes in the Polish First League.