CT

CT or ct may stand for:

• Central Time Zone (Americas), a time zone in Canada, the United States, and Mexico
• Carat (purity) (ct), a measure of the purity of gold and platinum alloys
• Carat (mass) (ct), a unit of mass used for measuring gems and pearls
• X-ray computed tomography, often referred to as a CT or CAT scan, a medical imaging method

Places

• Canterbury, Kent, UK, via UK postcodes
• Connecticut, via United States postal abbreviation
• 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 diagram)
• Canton and Enderbury Islands (via obsolete ISO 3166 country code), part of the Phoenix Islands in the Pacific Ocean
• Chinatown, Neighborhood

Medical

• Cognitive therapy
• Cardiothoracic surgery, the field of medicine specializing in chest surgery
• Connective tissue, a type of biological tissue
• X-ray computed tomography, a medical imaging method

Organizations

• CT (company), a registered agent firm
• Canadian Tire, a Canadian company engaged in retailing, financial services and petroleum
• Calgary Transit, the public transit service in Calgary, Alberta, Canada
• Central Trains, a former train operating company in the United Kingdom
• Česká televize (CT), the public television broadcaster in the Czech Republic
• Malayan Races Liberation Army, which was referred to as "Communist Terrorists" or "Charlie Tango") by the British during the Malayan Emergency
• Conister or sometimes "Conister Trust, an Isle of Man-based financial institution.

Entertainment

• Champions Trophy (disambiguation), the name of some trophies awarded in different sports
• Cryme Tyme, a professional wrestling stable working for WWE's RAW brand

Other uses

• Courtyard (Ct.)
• Chemotype (ct.)
• Centime (ct), French for "cent", used in English in several Francophone countries
• Intel Ct, a SIMD multithreading programming model developed by Intel
• Honda CT series, a series of Honda bikes
• Center tap, a wire that is connected halfway along one of the windings of a transformer, inductor or a resistor
• Current transformer, a special kind of transformer used in the electrical power industry
• Convective temperature
• Crawler-transporter, a tracked vehicle used to transport the Space Shuttle from Vehicle Assembly Building to Launch Complex 39
• Cryptologic technician, a United States Navy enlisted rating or job specialty
• Gas turbine, of which "combustion turbine" is a type of, a rotary engine that extracts energy from a flow of combustion gas
• Compliant Tower, a deepwater offshore oil platform
• Counter-terrorism, the practices, tactics, and strategies used by governments and militaries to fight terrorism
• c't, a German computer magazine, standing for "Computer Technik"
• Antimatter, which "contra-terrene" is another name of
• Civil Air Transport IATA code
• The ct ligature