LT

LT may refer to:

Companies and organisations

 * LTU International, a German airline (IATA code LT)
 * LJ Air, a Chinese airline (IATA code LT)
 * Larsen & Toubro, an Indian engineering conglomerate, officially known as L&T
 * Life Teen, a Roman Catholic organization for youth ministry
 * London Transport (brand), the name for various transport authorities
 * Lord & Taylor, a North American luxury department store chain
 * Lorien Trust, a company that runs live roleplaying games
 * Lucent Technologies (old company), which merged with Alcatel to form Alcatel-Lucent

Places

 * Lithuania (ISO 3166 code)
 * Lithuanian language (ISO 639-1 code)
 * Province of Latina, Italy (vehicle plate code)
 * Long Trail, a footpath in the American state of Vermont

Biology and medicine

 * Lactate threshold, a measurement used by athletes to determine the amount of strenuous work capable by their muscles
 * Lymphotoxin, a cytokine
 * Gallid alphaherpesvirus 1, the cause of infectious laryngotracheitis in poultry
 * SV40 large T antigen, a proto-oncogene derived from polyomavirus SV40
 * Heat-labile enterotoxin, a toxin produced by enterotoxigenic Escherichia coli

Electronics and computing

 * .lt, Internet country code top-level domain for Lithuania
 * LaGrande Technology, former name for the Trusted Execution Technology (Intel's implementation of Trusted Computing)
 * Left total, in sound recording, the left channel of the stereo Left total/Right total downmix
 * Lightning Talk, a very short presentation lasting only a few minutes, given at a conference or similar forum.
 * Linear Technology, manufacturer of integrated circuits
 * Link Training, process by which the transmitter and receiver on a high-speed serial link communicate with each other in order to tune their equalization settings
 * Logic Theorist, a computer program written in 1955–56 to prove mathematical theorems; called "the first artificial intelligence program"
 * LanguageTool, an extension for many web browsers

Mathematics

 * Laplace transform
 * Less than
 * Logic Theorist, a computer program written in 1955–56 to prove mathematical theorems; called "the first artificial intelligence program"
 * Lorentz transformation

Vehicles

 * LT, a type of London bus
 * LT (car), an early Swedish automobile
 * LT, a trim level for Chevrolet vehicles
 * GM LT1 engine several engines by General Motors
 * Lincoln Mark LT
 * Volkswagen LT, a light truck
 * McLaren 675LT, a British supercar
 * Logistics Trainer, code name for the Lockheed F-117 Nighthawk stealth attack aircraft

Other uses in science, technology, and mathematics

 * Long ton, a unit of measurement

Other uses

 * Ladytron, a British electronic band
 * Lawrence Taylor, retired American Football outside linebacker
 * LaDainian Tomlinson, retired American Football running back
 * Lead time, the latency between initiation and execution, as in supply chain management
 * Left tackle, a position in American and Canadian football
 * Lieutenant, sometimes abbreviated as Lt, Lt. Lieut, and similar
 * Lisbon Treaty, a 2007 agreement amending the constitutional basis of the European Union
 * Lithuanian language (ISO 639-1 code)
 * Lithuanian litas (Lt), former currency of Lithuania, replaced by the Euro in 2015
 * Living Things (Linkin Park album), 2012
 * Local Time, in the context of time zones
 * Looney Tunes, theatrical cartoon series
 * Lorna Tolentino (born 1961), Filipina actress with her screen name L.T.
 * Louis Tomlinson (born 1991), a British singer, songwriter