LCS

LCS may refer to:

Schools and organizations

 * Laboratory for Computer Science, research institute at the Massachusetts Institute of Technology
 * Lake County Schools school district of Lake County, Florida
 * Lakefield College School an independent school in Lakefield, Ontario, Canada
 * Larchmont Charter School, a public charter school in Los Angeles, California
 * Lebanese Community School in Lagos, Nigeria
 * Legal Complaints Service, a former body that formally investigated complaints about solicitors in the United Kingdom
 * Lincoln Christian College and Seminary
 * Lincoln Community School in Accra, Ghana
 * Littlehampton Community School, large secondary school in West Sussex, England
 * Littleover Community School in Derby, England
 * Lockerby Composite School Canadian Secondary School in Ontario
 * London Controlling Section, a British World War II secret organisation
 * London Co-operative Society, a former consumer co-operative society of the United Kingdom
 * London Corresponding Society, a radical British society founded in 1792
 * Louisville Collegiate School, a private, nonsectarian, college preparatory k-12 school in Louisville, Kentucky.
 * Lutheran Confessional Synod, type of church
 * Lynchburg City Schools
 * Lynden Christian Schools

Science, mathematics, and computing

 * Laser Camera System, a type of scanner used on the Space Shuttle
 * Lagrangian coherent structure, in fluid mechanics, a type of flow structure
 * Learning classifier system, machine learning system
 * Lincoln Calibration Sphere 1, first of a series of inert globes used as radar calibration satellites
 * Liquid cooling system
 * Locally convex space
 * Longest common substring problem in computer science, the longest shared sequence of consecutive characters
 * Longest common subsequence problem in computer science, the longest shared sequence of not necessarily consecutive characters
 * Live Communications Server, Microsoft product now known as Skype for Business Server

Sports and entertainment

 * Grand Theft Auto: Liberty City Stories, a game for the PlayStation Portable and PlayStation 2
 * Last Comic Standing, an NBC reality program that premiered in 2003
 * League Championship Series, a round of playoffs in Major League Baseball
 * League Championship Series (formerly League of Legends Championship Series), a North American professional esports league for the video game League of Legends
 * Loose Cannon Studios, an American video game company

Other uses

 * Littoral combat ship, two modern classes of US Navy ships
 * Landing Craft Support, classes of ships in US Navy and Royal Navy
 * Licensed Clinical Social Worker, a credential in psychology, see List of credentials in psychology