LCS explained

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

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

, 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
Lion City Sailors, a Singaporean football club
Loose Cannon Studios, an American video game company

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
Low Country Sound, an American record label imprint