CLT, Clt, or clt may refer to:
Businesses and organizations
Canadian Learning Television, a former name of Oprah Winfrey Network Capitol Land Trust, Washington, USA Compagnie Luxembourgeoise de Radiodiffusion, later RTL Group, Luxembourg media company Culture Commission or "CLT Commission" affiliated with UNESCO
Education Classic Learning Test, an American standardized test Cognitive load theory, in pedagogical psychology Communicative language teaching, an approach
Law Charitable lead trust, a form of charitable trust in the United States Community land trust, a housing model Consolidation of Labor Laws, a 1943 Brazilian law ()
Medicine Chronic lymphocytic thyroiditis, an autoimmune disease Clinical Laboratory Technologist, a healthcare professional Clot lysis time, a result of the OHP test for blood clots
Transport Charlotte Douglas International Airport, North Carolina, US (IATA:CLT) Cilebut railway station, Indonesia Clacton-on-Sea railway station, Clacton on Sea, UK Kozhikode railway station, Kerala, India
Science, technology and mathematics Central limit theorem, in probability and statistics Construal level theory, a statistical social theory Central location test, a marketing research technique Cross-laminated timber, an engineered wood
Other uses Chile Standard Time, a time zone (UTC−4) Charlotte, North Carolina