LAC

LAC may refer to:

Places

 * La Crescenta, California, unincorporated area in Los Angeles County
 * Latin America and the Caribbean
 * Latin American and Caribbean Group, United Nations geoscheme region
 * Line of Actual Control, a demarcation line between Indian-controlled and Chinese-controlled territories (1959–present)
 * Los Angeles County in California
 * Los Angeles, California

Education

 * Liberal arts college, undergraduate educational institution
 * Longburn Adventist College, a Seventh-day Adventist school near Palmerston North, in Longburn, New Zealand

Government and military

 * California State Prison, Los Angeles County
 * Leading Aircraftman, a rank in some air forces

Organizations

 * LAC Group, library services vendor in America
 * LAC Minerals, a Canadian mining company
 * Ladies' Alpine Club (1907–1975), a club for women climbers, based in London, merged in 1975 with the Alpine Club
 * Lake Avenue Church, Pasadena Ca.
 * Lancashire Aero Club, flying club in the United Kingdom
 * Legal Aid Commission, organisation providing legal aid related to Community legal centres, Australia
 * Library and Archives Canada, national memory institution preserving documentary heritage about Canadian life
 * Liga Antituberculosa Colombiana, an organization focused on curing and preventing tuberculosis

Science and technology

 * L2TP Access Concentrator, endpoint of a Layer 2 Tunneling Protocol tunnel
 * Laboratoire Aimé-Cotton, French research laboratory
 * Linear acetylenic carbon, a polymeric carbon chain
 * Location Area Code, a unique 16-digit fixed length location area identity code broadcast by a "base transceiver station" in GSM public land mobile network, that identifies a phone number's location area
 * Lorenz asymmetry coefficient, a statistic used in the analysis of wealth or income inequality
 * lac operon, a DNA operon relating to the metabolism of lactose found in some bacteria

Sports

 * London Aquatics Centre
 * Los Angeles Chargers, a National Football League team based in Carson, California
 * Los Angeles Clippers, a National Basketball Association team based in Los Angeles

Transport

 * LAC, the ICAO operator designator for Lockheed Corporation (Lockheed Aircraft Corporation), United States
 * Lignes Aériennes Congolaises (defunct airline of the Democratic Republic of the Congo)
 * Linea Aerea Cuencana, a regional airline operating out of Cuenca, Ecuador
 * Líneas Aéreas Canarias
 * Lockheed Aircraft Company, American aerospace company
 * Granada LAC, a BRT system in the city of Granada, Spain
 * Lancing railway station, station code