The initialism DTC may refer to:

In Companies and organizations:

• Defence Technology Centre
• Dender Terror Corps
• Delaware Theatre Company
• Driving Training Centre theDTC.co.uk Edinburgh
• Delhi Transport Corporation (DTC), the transportation backbone of Delhi.
• Denver Technological Center, a business park located on I-25 in Denver and Greenwood Village, Colorado
• Depository Trust Corporation, division of the Depository Trust & Clearing Corporation clearing house
• Diamond Trading Company, the world's largest marketer of rough diamonds and company within the De Beers group
• Doctoral Training Centre

In Software:

• Data Trouble Code, in software engineering for diagnostic purposes stored error codes (e.g. automotive).
• Direct-threaded code, a compiler implementation technique.
• Distributed Transaction Coordinator, in Microsoft Servers for a subsystem concerned with atomic transactions across multiple datastores
• Domain Technologie Control, a Web-based control panel for admin and accounting for hosting web and e-mail services

In Automotive Industry:

• Danish Touring Car Championship, Danish touring car racing series
• Deutsche Tourenwagen Challenge, a former German touring car racing series
• Diagnostic Trouble Code, in the automotive industry, codes that are prescribed by SAE standards to help track problems in a vehicle detected by its on-board computer

In Methods and Techniques:

• Davis Tube concentrate, a technique for measuring ore grades in mining.
• Derivational theory of complexity, psycholinguistics hypothesis
• Direct Torque Control, a method to control electric motor with very good torque dynamics
• Direct traffic control, a method of authorizing track occupancy on American railroads

In other fields:

• d-tubocurare, an anaesthetic agent
• Domtar Incorporated (New York Stock Exchange stock symbol)
• Design to Cost, a process or program to design a product or service to an optimum cost/value ratio
• Developmental Test Command, component of the United States Army
• Digital Toy Camera, category of digital cameras incapable of producing RAW image files.
• Direct-to-consumer advertising, term for sale of goods without intermediary third parties
• Depth to conversion, the amount of moves that yields a win or loss under perfect chess play.

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