LCK

LCK may refer to:


 * The Lymphocyte-specific protein tyrosine kinase, Lck (also called p56-LCK)

Transport stations and areas

 * Rickenbacker International Airport, Columbus, Ohio (IATA airport code LCK)
 * Lockwood railway station, England (National Rail station code LCK)
 * Lai Chi Kok station, Hong Kong (MTR station code LCK)
 * Lim Chu Kang, Singapore

Gaming

 * League of Legends Champions Korea, the top-level league for League of Legends competition in South Korea
 * A shortened form of the word "Luck" used in many Role-playing games

Other

 * Louis C.K., stand-up comedian, writer, producer, director, and actor
 * Language Construction Kit, a feature of the website Zompist.com