TCG

TCG may stand for:

• Geocentric Coordinate Time
• Test Call Generator, piece of equipment used for testing in the telecommunications industry
• TCG (album), the official debut studio album released in 2007 by The Cheetah Girls
• TCG Advisory, LLC (The Chhabra Group), based in New York and organized by Attorney Amit Chhabra
• Teleport Communications Group, later acquired by AT&T
• The Catholic Guy, a radio talk show currently airing on Sirius XM Satellite Radio in the U.S.
• Theatre Communications Group
• Time Code Generator (as in SMPTE time code or CTL timecode)
• The Topps Company, Inc., a producer of sports cards, usually found in the copyright note on the cards themselves
• Trading card game
• Trusted Computing Group
• Türkiye Cumhuriyeti Gemisi (Ship of the Turkish Republic)