LCK may refer to: Rickenbacker International Airport, Columbus, Ohio (IATA airport code LCK) Lockwood railway station, England (National Rail station code LCK) The Lymphocyte-specific protein tyrosine kinase, Lck (also called p56-LCK) Louis C.K., stand-up comedian, writer, producer, director, and actor A shortened form of the word "Luck" used in many Role-playing games Language Construction Kit, a feature of the website Zompist.com League of Legends Champions Korea, the top-level league for League of Legends competition in South Korea Lai Chi Kok station, Hong Kong (MTR station code LCK) Lim Chu Kang, Singapore