TCG

TCG may refer to:

Businesses and organisations

 * Taipei City Government, Taiwan
 * TCG (company), U.S. investment advisory firm
 * Teleport Communications Group, defunct U.S. telephone company
 * Theatre Communications Group, New York non-profit
 * Thomas Cook Group, defunct travel agency and airline
 * Tongan Crip Gang, street gang in North America and Australasia
 * Trusted Computing Group, commercial consortium on technological protection measures
 * Tunisian Combat Group, Islamist insurgents' network

Other uses

 * Geocentric Coordinate Time (Temps-coordonnée géocentrique)
 * Test call generator, in telecommunications
 * TCG (album), 2007 album from The Cheetah Girls
 * Trading card game, collectible form of game
 * Türkiye Cumhuriyeti Gemisi, ship prefix for Ship of the Turkish Republic
 * The genetic code for the amino acid Serine, according to the DNA codon table
 * IATA code for Tacheng Airport, China
 * Tiny Code Generator, interpreter/translator engine of QEMU