Kok or KOK may refer to:
- Konkani language
- See Koka and Vikoka for Kok, the brother of Vikoka, who will fight Kalki according to the Kalki Purana
- Křesťanská Odborová Koalice, the Christian Labour Confederation in the Czech Republic
- Kappa Omicron Kappa, the fraternity in the movie Sorority Boys
- the Finnish abbreviation for National Coalition Party (Kansallinen Kokoomus)
- Knock Out Kaine, a rock band from Lincoln, England