CSL as an abbreviation may stand for: Places Coordinated Science Laboratory, at the University of Illinois Liège Space Center (Centre spatial de Liège), at the University of Liege in Belgium Central Science Laboratory, a former UK DEFRA laboratory services agency Languages Croatian Sign Language, a sign language for the deaf in Croatia Chinese Sign Language, a sign language for the deaf in China, Malaysia, and Taiwan Clay Sanskrit Library, a series of books in Sanskrit with English translations Context-sensitive language, a class of formal languages in computational linguistics Sciences Crosshole sonic logging, method for testing a constructed material Calcium stearoyl-2-lactylate, a food additive used as an emulsifier Continuous spontaneous localization, a dynamical reduction theory in quantum mechanics Hartmann's solution, compound sodium lactate, used in intravenous transfusions Military Cooperative Security Location, a US military facility CSL, the designation code for Royal Australian Navy Wattle-class crane stores lighters Computing Citation Style Language, an open XML-based standard to format citations and bibliographies Current-steering logic, an alternative name for emitter-coupled logic in electronics Context-sensitive language, a language generated from a context-sensitive grammar Companies CSL Mobile, subsidiary of Hong Kong Telecom CSL Limited, an Australian biotechnology company, formerly Commonwealth Serum Laboratories CSL Behring, a daughter company of CSL Limited Canada Steamship Lines, a Canadian shipping company CSL Sofas, a furniture chain in the United Kingdom Cochin Shipyard Limited, a shipbuilding company in Kerala, India Sports CAL Spora Luxembourg, amateur athletics club in Luxembourg Canadian Soccer League, a soccer league in Canada since 2006 Canadian Soccer League (1987–1992), a soccer league in Canada Chinese Super League, the premier league of association football in China Cosmopolitan Soccer League, a soccer league in United States Politics Canadian Socialist League, a political party active from 1898 to 1904 Czechoslovak People's Party (Československá strana lidová, ČSL), a political party Others Centers for Spiritual Living, a religious denomination Certain models of BMW car, designated BMW CSL Charter seat license, name used by a few sports teams for a personal seat license