CLT, Clt, or clt may refer to:
Clathrin heavy chain 1 is a protein that in humans is encoded by the CLTC gene.
Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature, through heat transfer.
Charlotte Douglas International Airport (IATA: CLT, ICAO: KCLT, FAA LID: CLT) is a joint civil-military public international airport located in Charlotte, North Carolina, United States.
The Criminal Law (Temporary Provisions) Act (often known by the abbreviation "CLTPA") is a Singapore statute that, among other things, allows the executive branch of the Government of Singapore to order that suspected criminals be detained without trial.
The Champions League Twenty20, also referred to as the CLT20, was an annual international Twenty20 cricket competition played between the top domestic teams from major cricketing nations.
Central Luzon Television (CLTV 36 Metro Central Luzon) is a regional television network, based in the Central Luzon region in the Philippines.
The Free Confederation of Chadian Workers (CLTT) is a trade union centre in Chad. It was formed in 1991 by members from the dissolved National Confederation of Trade Unions of Chad.
Common Lisp the Language is an influential reference book by Guy L. Steele about Common Lisp.