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 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 See also Lanthanum carbide (LaC2) Lac (disambiguation) Lac LACS (disambiguation) LACC (disambiguation)