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 , 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