Kek or KEK may refer to:

• Kék, a village in eastern Hungary
• Ekwok Airport (IATA: KEK), an airport in Ekwok, Alaska

• Franci Kek (born 1964), Slovenian politician and actor
• Matjaž Kek (born 1961), Slovenian footballer and manager
• Hakka people, also known as Kek, Khek or Khek-ka

• KEK, a Japanese particle physics research organization
• Party of Greek Hunters (Greek: Κόμμα Ελλήνων Κυνηγών), a Greek political party
• KF KEK, a football club based in Obilić, Kosovo

• Kek (mythology), Egyptian god
• Q'eqchi' language (ISO 639-3: kek), a Mayan language
• Key encryption key, a cryptographic term
• "Kek", a song by singer Nil Karaibrahimgil in her album Nil Dünyası
• "Kek", or "kekeke"/"ㅋㅋㅋ", a Korean onomatopoeia of laughter used similarly to "LOL"
• Cult of Kek, a parody religion associated with alt-right politics

• KEKS, a Kansas radio station
• Leibniz-Keks, a German biscuit brand
• Keck (disambiguation)