Bek or BEK may refer to:
- Bek, an alternative spelling of Bey, master
- Khagan Bek, the title of the king of the Khazars
- Bek Ohmsford, a character in the Shannara series of books
- Bruce Eric Kaplan, a cartoonist for The New Yorker
- Bek (sculptor) or Bak, an ancient Egyptian sculptor
- Garryn Bek, a fictional police officer from DC Comics
- A Bek, a minor-character Hork-Bajir child in Animorphs book 23
- Bek, birthname of the American musician Beck
- Bergen Center for Electronic Arts, a media lab for artists in Norway
- Bleached Eucalyptus Kraft, a type of pulp made from Eucalyptus