TTC may refer to:

In arts and entertainment

• Tao Te Ching, the collection of sayings attributed to Lao Tzu
• Tom Tom Club, an American new wave band
• The Travel Channel, a cable channel devoted to travel
• The Tennis Channel, a digital channel devoted to tennis
• TTC (band), a French hip-hop trio

Businesses and organizations

• Toronto Transit Commission, a public transit operator in Toronto, Ontario, Canada
• The Teaching Company, an American company that produces recordings of lectures by university professors, the distributor of The Great Courses
• The Tetris Company, owner of the trademark and copyright for Tetris
• Telecommunication Technology Committee, a telecommunications standards body in Japan
• Trade and Technology Council, a diplomatic forum for EU-US trade and tech
• Transmission Technologies Corporation, former name of automobile transmissions manufacturer TREMEC Corporation

Schools

• Tatung Institute of Commerce and Technology, a college in Chiayi City, Taiwan
• Tendring Technology College, a secondary school in Essex, England
• Trident Technical College, a two-year public college in greater Charleston, South Carolina
• Tulsa Technology Center, a public college in Tulsa, Oklahoma
• TTC Yangon (Teacher's Training College), a combined primary & secondary school in Yangon, Myanmar, under Practising School Yangon Institute of Education
• Texas Technological College, former name of Texas Tech University
• Tsung Tsin College [zh], a middle school in Tuen Mun, Hong Kong

Places

• Transbay Transit Center, an intermodal transit station in San Francisco
• Trenton Transit Center, a train station in Trenton, New Jersey
• Transportation and Ticket Center, a transport hub at the Walt Disney World Resort
• Trans-Texas Corridor, an American transportation network of expressways, rails, and utility lines being constructed in Texas
• Trans Thane Creek, a creek running between Thane and Navi Mumbai, India
• Telford Town Centre, an area of central Telford, England, officially known Telford Shopping Centre
• Transportation Technology Center, a federal rail testing facility in Pueblo, Colorado

In science and technology

• Tetrazolium chloride, a redox indicator commonly used in biochemical experiments especially to indicate cellular respiration
• TrueType Collection, a file type that packs several TrueType fonts into a single file
• Top trading cycle, an algorithm for trading or optimal matching indivisible items without using money
• General time- and transfer constant analysis in electronic circuits
• Toyota TTC (Toyota Total Clean system), an emission control technology used by Toyota during the 1970s
• Tracking, telemetry, and control, a subsystem of spacecraft and ground segments which handles communications
• Threshold of Toxicological Concern, in toxicology
• TTC, a codon for the amino acid Phenylalanine
• Cugir Tokarov, a Romanian variant of the Soviet TT-33 pistol

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