JK may refer to:
Juan Karlos Labajo (born February 5, 2001), also known as JK is a Filipino singer and actor. He is co-managed by ABS-CBN's Star Magic and MCA Music Inc.
JKT48 (read as "J. K. T. Forty-eight") is an Indonesian idol group whose name is derived from its based city of Jakarta and the Japanese idol group AKB48. Formed in 2011, it is the first AKB48 sister group outside Japan and adopts the concept of "idols that will come to meet you".
JK Tyre & Industries Ltd is an automotive tyre, tubes and flaps manufacturing company based in Delhi, India.
John Kimball "JK" Scott (born October 30, 1996) is an American football punter for the Green Bay Packers of the National Football League (NFL).
JK Tallinna Kalev, also known as Tallinna Kalev, or simply as Kalev, is a football club based in Tallinn, Estonia, that competes in the Meistriliiga, the top flight of Estonian football.
JK Narva Trans, commonly known as Narva Trans, or simply as Trans, is a professional football club, based in Narva, Estonia, that competes in the Meistriliiga, the top flight of Estonian football.
JK Flesh is a moniker of English musician Justin Broadrick employed for his solo work within "heavy" or "brutal" electronica music.
JK Sillamäe Kalev, commonly known as Sillamäe Kalev, or simply as Sillamäe, is a football club, based in Sillamäe, Estonia.