LCA may refer to:

Technology Landing Craft Assault, a British landing craft of the Second World War. LCA (Low Cost Apple), code name for the Apple IIe Light Combat Aircraft program, pursued by India for the development of the HAL Tejas 4th generation fighter jet. Liquid Crystal Attenuator Lower control arm, component of an automobile suspension Luminance-Chrominance-Audio, video signal standard, carrying brightness and color information on separate wires.

Mathematics Latent class analysis in statistics, a set of observed discrete multivariate variables to a set of latent variables Linear Correspondence Axiom, linguistic term belonging to the theory of antisymmetry Lowest common ancestor, in graph theory, the lowest node in T that has both v and w as descendants Large cardinal axiom, a type of proposed axiom in the field of set theory

Science Last Common Ancestor, the most recent common ancestor of two populations that came to be separated by a species barrier Longitudinal (or lateral) chromatic aberration, a form of colour distortion in optical microscopes Life cycle assessment (or life cycle analysis), a technique to assess environmental impacts of products

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

Places La Crescenta, California (Amtrak station code) Larnaca International Airport, Cyprus (IATA airport code) Little Caesars Arena, sports arena in Detroit London City Airport, a small airport in the London Docklands Saint Lucia (ISO 3166-1 country code, IOC country code)

Organizations Lambda Chi Alpha, one of the largest fraternities in North America. Land Commissioners Association, an association of state land administrators in the United States from 1931 to 1934 Last Chance for Animals, a not-for-profit animal welfare organization Law Council of Australia LCA-Vision, a U.S. company providing LASIK vision services Legal & Corporate Affairs (internal legal department, e.g. at Microsoft) Leeds College of Art Legalise Cannabis Alliance Lexington Christian Academy (disambiguation) Lutheran Church in America Lutheran Church of Australia

Other Labor Condition Application, included in H-1B visa application Leaving Certificate Applied, a two-year programme of the Irish Department of Education and Science linux.conf.au, the annual conference organised by Linux Australia ( LCA) Liquor Control Act (Manitoba ministry) Lithocholic acid Low cost airline Landscape character assessment, the process of identifying and describing variation in character of the landscape; see