CT

CT or ct may stand for:

• Carat (purity) (ct), a measure of the purity of gold and platinum alloys
• Cardiothoracic Surgery, the field of medicine specializing in chest surgery
• Center tap, a wire that is connected halfway along one of the windings of a transformer, inductor or a resistor
• Centime (ct), French for "cent", used in English in several Francophone countries
• Central Time zone, a time zone in Canada, the United States, and Mexico
• Champions Trophy
• Civil Air Transport IATA code
• Chrono Trigger, a console role-playing game created by Square for the Super NES
• Combustion turbine, a rotary engine that extracts energy from a flow of combustion gas
• Computed tomography, a.k.a. CAT scan, a medical imaging method
• Counter-terrorism, the practices, tactics, and strategies used by governments and militaries to fight terrorism
• Cryptologic technician, a United States Navy enlisted rating or job specialty
• c't, a German computer magazine
• Cameltoe, a slang term for the outline of a woman's vulva when seen through tight clothing
• Transparency (optics) (see-through)
• Cryme Tyme, a professional wrestling stable working for WWE's Extreme Championship Wrestling brand
• Computed tomography, the shortened medical acronym for Computed Tomography.

Organizations:

• Calgary Transit, the public transit service in Calgary, Alberta, Canada
• Central Trains, a train operating company in the United Kingdom
• Česká televize (ČT), the public television broadcaster in the Czech Republic
• Combined Transport Inc., a heavy haul trucking service based out of Central Point, Oregon, United States
• CT, the largest registered agent firm in the world.

Places:

• Canton and Enderbury Islands (via obsolete ISO 3166 country code), part of the Phoenix Islands in the Pacific Ocean
• Cape Town, the legislative capital of South Africa
• Catania, the capital city of the province of Catania, in Sicily, Italy
• Central African Republic (via FIPS Pub 10-4 code and obsolete NATO digram)
• Connecticut, via United States postal abbreviation