Klok or KLOK may refer to:
People
edit- Gersom Klok (born 1990), Dutch football player
- Hans Klok (born 1969), Dutch magician, illusionist and actor
- Jens Klok (1889–1974), Danish architect
- Lukáš Klok (born 1995), Czech ice hockey player
- Marc Klok (born 1993), Dutch-born Indonesian professional footballer
- Marko Klok (born 1968), Dutch volleyball player