CT or ct may refer to:

In arts and media

* ''

c't ''c't'' – ' (''Magazine for Computer Technology'') is a German computer magazine, published by the Heinz Heise publishing house. The 5.71 meter high tower from the 587 published c't editions up to the 30th anniversary has been in the foyer ...

'' (''Computer Technik''), a German computer magazine * Freelancer Agent Connecticut (C.T.), a fictional character in the web series ''Red vs. Blue'' * Christianity Today, an American evangelical Christian magazine

Businesses and organizations

CT Corp CT Corp (formerly known as Para Group) is one of Indonesia's largest diversified group of companies. The group was founded by Chairul Tanjung in 1987. CT Corp operates consumer-centric businesses nationwide across four key divisions: financial s ...

, an Indonesian conglomerate * CT Corporation, an umbrella brand for two businesses: CT Corporation and CT Liena * C/T Group, formerly Crosby Textor Group, social research and political polling company * Canadian Tire, a Canadian company engaged in retailing, financial services and petroleum *

Calgary Transit Calgary Transit is the public transit agency which is owned and operated by the city of Calgary, Alberta, Canada. In 2019, an estimated 106.5 million passengers boarded approximately 1,155 Calgary Transit vehicles. It operates light metro (LRT), u ...

, the public transit service in Calgary, Alberta, Canada *

Central Trains Central Trains was a train operating company in the United Kingdom owned by National Express that operated a variety of local and inter-regional trains from 2 March 1997 until 11 November 2007. Overview Created out of the Central division o ...

(National Rail abbreviation), a former train operating company in the United Kingdom *

Česká televize Czech Television ( cs, Česká televize, italics=no ; abbreviation: ČT) is a public television broadcaster in the Czech Republic, broadcasting seven channels. Established after the Velvet Revolution in 1992, it is the successor to Czechoslov ...

, the public television broadcaster in the Czech Republic *

Community Transit Community Transit (CT) is the public transit authority of Snohomish County, Washington, United States, excluding the city of Everett, in the Seattle metropolitan area. It operates local bus, paratransit and vanpool service within Snohomish C ...

, the public transit service in Snohomish County, Washington, U.S. * Comunión Tradicionalista, a former Spanish political party *

CT (TV channel) CT (stood for City Television) was a 24-hour Filipino cable and satellite television network based in Mandaluyong. It was launched on March 22, 2015. Owned by Solar Entertainment Corporation, replacing Jack City, a defunct spin-off of sister chan ...

, a Filipino cable and satellite television network

Finance

Centime Centime (from la, centesimus) is French for "cent", and is used in English as the name of the fraction currency in several Francophone countries (including Switzerland, Algeria, Belgium, Morocco and France). In France, the usage of ''centime' ...

(ct), the French for "cent", used in English in several Francophone countries * Stotinki (ст), the currency of Bulgaria

Places

* CT postcode area, for Canterbury and surrounding areas in south-eastern England *

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capita ...

(United States postal abbreviation) *

Province of Catania The Province of Catania ( it, Provincia di Catania; scn, Pruvincia di Catania) was a province in the autonomous island region of Sicily in southern Italy. Its capital was the city of Catania. It had an area of and a total population of about 1, ...

(vehicle registration code), Sicily, Italy *

Central African Republic The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of th ...

(FIPS Pub 10-4 code and obsolete NATO diagram) *

Canton and Enderbury Islands The Canton and Enderbury Islands consist of the coral atolls of Canton Island (also Kanton) and Enderbury in the northeastern part of the Phoenix Islands, about 1,850 miles (3,000 km) south of Hawaii in the central Pacific Ocean. History ...

(obsolete ISO 3166 country code), part of the Phoenix Islands in the Pacific Ocean *

Cape Town Cape Town ( af, Kaapstad; , xh, iKapa) is one of South Africa's three capital cities, serving as the seat of the Parliament of South Africa. It is the legislative capital of the country, the oldest city in the country, and the second largest ...

(capital city of the Western Cape, South Africa) * Ct, for "Court"; a street suffix as used in the US

Science and technology

Biology and medicine

Haplogroup CT Haplogroup CT is a human Y chromosome haplogroup, defining one of the major paternal lineages of humanity. Men who carry the CT clade have Y chromosomes with the SNP mutation M168, along with P9.1 and M294. These mutations are present in all mod ...

, Y-DNA haplogroup. * CT scan or X-ray computed tomography, a medical imaging method *

Calcitonin Calcitonin is a 32 amino acid peptide hormone secreted by parafollicular cells (also known as C cells) of the thyroid (or endostyle) in humans and other chordates. in the ultimopharyngeal body. It acts to reduce blood calcium (Ca2+), opposing th ...

(symbol CT), a hormone produced in the thyroid gland * Calibrated automated thrombogram (CT or CAT), a coagulation test *

Cardiothoracic surgery Cardiothoracic surgery is the field of medicine involved in surgical treatment of organs inside the thoracic cavity — generally treatment of conditions of the heart (heart disease), lungs ( lung disease), and other pleural or mediastinal str ...

, the field of medicine specializing in chest surgery * Chemotype (ct.), a chemically distinct entity in a plant or microorganism * Cognitive therapy, a type of psychotherapy * Connective tissue, a type of biological tissue * Chelation therapy * Chemotherapy *Cholera toxin, a toxic protein secreted by ''Vibrio cholerae'' * Threshold Cycle (C_t), see cycle of quantification/qualification * COVID-19 test

Computing

* Intel Ct, a SIMD multithreading programming model developed by Intel * Certificate Transparency, in network security

Other uses in science and technology

* CT Value, in drinking water disinfection * Threshold cycle (C_t), a measure in the cycle of quantification/qualification of a real-time polymerase chain reaction * 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 * Continuous-time signal, a varying quantity (a signal) whose domain is a continuum * Center tap, a wire that is connected halfway along one of the windings of a transformer, inductor or a resistor * Compliant Tower, a deepwater offshore oil platform * Convective temperature, in atmospheric science * Current transformer, a kind of transformer used in the electrical power industry

Transportation

* Lexus CT, an automobile * Honda CT series, a series of Honda bikes * Crawler-transporter, a tracked vehicle used to transport the Space Shuttle from Vehicle Assembly Building to Launch Complex 39 * Civil Air Transport (IATA code) * Training cruiser, a U.S. Navy hull classification

Other uses

* Ct, a typographic ligature * ''c. t.'' (cum tempore, Latin for "with time"), indicates that a lecture will begin a quarter-hour after the stated time; see Academic quarter (class timing), Academic quarter * Central Time Zone, a time zone in Canada, the United States, and Mexico * Coffin Texts * Conspiracy theory or theorist * Counter-terrorism * Cryptologic technician, a United States Navy enlisted rating or job specialty * Chinese Taipei, the name used by Taiwan in some international organizations due to political pressure from the People's Republic of China * ct followed by a number means the number of items contained in a cardboard (e.g. zucchini 3 ct) * Corps Turd, etymologically "Cadet in Training", member of the Glossary of Texas A&M University terms#C, Texas A&M Corps of Cadets that is not in the band