TCT

TCT may refer to:

Science and technology

 * Teenage Cancer Trust, a British charity organization
 * Thrombin clotting time, a test used in blood coagulation
 * Tocotrienol, a group of four isomers occurring in Vitamin E
 * True crystallization temperature, the temperature at which salt crystals begin to crystallize from a solution
 * The Coroner's Toolkit, a suite of computer forensic software
 * Tungsten carbide-tipped, hardened metal used for example in an annular cutter or drill bit
 * TCT, a codon for the amino acid Serine

Transportation

 * Tate's Cairn Tunnel, a Hong Kong tunnel
 * Texas City Terminal Railway, a 32-mile-long railroad
 * Trans Canada Trail, a proposed trail that would stretch across Canada
 * Tung Chung Terminal, a Hong Kong gondola lift station of Ngong Ping 360

Arts and media

 * The Catholic Transcript, a Catholic paper in Hartford, Connecticut, United States
 * The Catholic Thing, a Catholic online publication
 * TCT (band), a Finnish band
 * Tri-State Christian Television, a Christian cable television network broadcasting in the US and Canada (formerly known as Total Christian Television)
 * Tucker Carlson Tonight, the eponymous talk show of conservative political commentator and author Tucker Carlson which aired on Fox News from 2016 until 2023.
 * The Campaign Trail, a game created by Dan Bryan

Other uses

 * Touring Club de Tunisie, a member of the Fédération Internationale de l'Automobile