CTS

• Chinese Television System, a Taiwanese broadcast television station, including:
• CTS Main Channel ({{zh|labels=no|t=華視主頻|link=no}})
• CTS Education and Culture ({{zh|labels=no|t=華視教育文化頻道|link=no}})
• CTS Recreation ({{zh|labels=no|t=華視休閒頻道|link=no}})
• CTS News and Info ({{zh|labels=no|t=華視新聞頻道|link=no}}) (on Chunghwa Telecom MOD only)
• Christian Television System, in South Korea
• Crossroads Television System, in Canada
• The Catherine Tate Show, a British television program
• Channel 44 (Adelaide), in Australia, which uses the call-sign CTS33
• Country Television Services, Australia

• Car Top Systems, a supplier of automotive convertible tops
• China Travel Service, the tourism and travel agency of China, parent company renamed China Tourism Group in 2020.
• Cognizant Technology Solutions, a US-based information technology services company
• Compagnie des Transports Strasbourgeois, a public transport company based in Strasbourg, France
• Connexxion Taxi Services, a division of Connexxion, a large public transport company in the Netherlands
• Colorado Time Systems, a US-based company providing aquatic timing services

• Chicago Theological Seminary, affiliated with the United Church of Christ, in Chicago, Illinois
• Christian Theological Seminary, affiliated with the Disciples of Christ, in Indianapolis, Indiana
• Concordia Theological Seminary, affiliated with the Missouri Synod of the Lutheran Church, in Fort Wayne, Indiana
• Columbia Theological Seminary, affiliated with the Presbyterian Church, in Decatur, Georgia

• College of Technological Sciences–Cebu, Cebu City, Philippines
• The Calcutta Technical School, West Bengal, India

• Ciphertext stealing in cryptography
• Clear to send (disambiguation) control signal
• Common Type System, a common set of types in the .NET Framework
• Hermes Communications Technology Satellite, a Canadian communications satellite launched in 1976
• Computational transportation science, an interdisciplinary field addressing the modeling, planning, and economics of transportation

• Carpal tunnel syndrome, a medical condition causing pain in parts of the hand
• Cracked tooth syndrome, a medical condition in which a posterior tooth has developed a crack
• Cubital tunnel syndrome, compression of the ulnar nerve at the elbow
• Cathepsin, a class of enzymes
• Cardiothoracic surgery, a field of medicine involved in surgical treatment of diseases affecting organs inside the thorax (chest)

• CTS (rocket stage), a Chinese solid-fuel upper stage
• Cadillac CTS, a luxury automobile made by Cadillac
• Combat Training Squadron, look at List of United States Air Force training squadrons
• Conflict Tactics Scale, a social survey instrument for the study of conflict in relationships
• Copper Tube Size
• Cattle Tracing System, administered by the British Cattle Movement Service
• Pandan Bikol language, ISO 639-3 code

• Cambridge Tolkien Society
• Catholic Truth Society, an organisation that produces Catholic literature
• Certificate in Theological Studies (CTS) at Divine Word Seminary
• Combat Zones That See, a US defense project
• Consider the Source, New York City based jam band
• Counter Terrorism Service, an Iraqi security and intelligence agency tasked with counterterrorism
• Cosmic Top Secret, the highest of four levels of NATO classified information
• Crack the Skye, an album by heavy metal band Mastodon
• New Chitose Airport (IATA code)
• The NASCAR Craftsman Truck Series

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