LCA

Technology
Landing Craft Assault landing craft of the British Second World War.
Light Combat Aircraft program, pursued by India for the development of the HAL Tejas fourth generation fighter aircraft.
LCA (Low Cost Apple), code name for the Apple IIe
Liquid Crystal Attenuator
Airliners large passenger commercial aircraft (LCA), 100-400 passenger capacity
lower control arm, a component of an automotive suspension

Science
Last Common Ancestor, the most recent common ancestor of two people who would be separated by a species barrier
latent class analysis in statistics, a set of discrete variables observed on several variables for a set of latent variables
Assessment of life cycle or life cycle analysis, assessment of environmental impacts of a product or service throughout its life.
Linear Correspondence Axiom, linguistic term belonging to the theory of antisymmetry
Lowest common ancestor in the graph theory, the lowest node of T which has both V and W as descendants
Linked Cluster Architecture, a routing protocol for wireless mesh networks
Logic cell array
Architecture life cycle, the stage in the software development life cycle follows the life cycle objectives (LCO). During this phase of the software architecture is reviewed and validated

Medicine
Leber congenital amaurosis, a recessive genetic disease that causes blindness
Left coronary artery
Leukocyte common antigen

Places
La Crescenta, the code of the Amtrak California
Larnaca International Airport, Cyprus (IATA airport code)
Saint Lucia (ISO 3166-1 country code IOC country code)

Organizations
Lambda Chi Alpha, one of the largest fraternities in North America.
Last Chance for Animals, a non-profit animal protection that produced the HBO documentary, Dealing Dogs.
Legalize Cannabis Alliance
Council of the Order of Australia
Legal & Business (legal department, for example Microsoft)
LCA-Vision, an American company offering LASIK
Life Changing Apparel

Other
Lexington Christian Academy (disambiguation)
Labor Condition Application (included in the application of H-1B)
Leaving Certificate Applied, a two-year program of the Irish Department of Education and Science
linux.conf.au, the annual conference organized by Linux Australia
Liquor Control Act (Manitoba ministry)
Lutheran Church of America
Lutheran Church of Australia
Life Cycle Project Management activities
Low Cost Airline
London City Airport, a small airport in the London Docklands
Long-term Cooperative Action, one of two working groups at the center of UN negotiations on climate change