GTC may refer to:
Education General Teaching Council (disambiguation) Gateway Technical College, in Wisconsin, United States Green Templeton College, Oxford, a constituent college of the University of Oxford Greenville Technical College, in South Carolina, United States Griffin Technical College, now part of Southern Crescent Technical College, in Georgia, United States Gwinnett Technical College, in Georgia, United States Government Tolaram College, in Narayanganj, Bangladesh
Science and medicine Generalised tonic-clonic seizure Graceful tree conjecture Gran Telescopio Canarias, a Spanish telescope Gigatonnes of carbon (GtC) GTC, a codon for the amino acid valine
Technology Game time card, in online gaming Genome Therapeutics Corporation, a defunct American biotech company GPU Technology Conference, an annual technical conference started by Nvidia in 2009 Opel GTC, a concept car
Telecommunications Generic Token Card, in wireless and point-to-point communications Grameen Telecom, a Bangladeshi telecommunications company GTC Wireless, an American telecommunications company
Other uses Gauhati Town Club, an Indian sports club General Trade Company, a defunct Dano-Norwegian trading company GeTai Challenge, abbreviated as GTC, a Singaporean reality singing competition for getai singers organised by MediaCorp Girls' Training Corps, a former British girls' voluntary organisation Going to California (TV series) Good 'til cancelled, an investment order Global Touring Challenge: Africa, a 2001 video game also known as GTC: Africa Gran Turismo Concept, a 2002 video game Sasol GTC Championship, a South African motorsport championship Grand Traverse County, in Michigan, United States Grand Trunk Corporation, a Canadian National Railway subsidiary Ground Training Competition, of the Royal Air Force Grudge Training Center, a mixed martial arts training center in Colorado, United States Guild of Television Camera Professionals an organisation for professional camera people