TGC may refer to:

Companies and organisations

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Media and entertainment

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Science and medicine

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  • Thyroglossal cyst, a fibrous cyst that forms in the throat from a persistent thyroglossal duct
  • Tight glucose control, a practice in the medical treatment of diabetes
  • Time gain compensation, a setting applied in diagnostic ultrasound imaging
  • TGC, a codon for the amino acid Cysteine

Other

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  • Thai Green curry, a Thai dish
  • The Grand Canyon, of the Colorado River in Arizona, USA
  • The Great Courses, college-level audio and video courses by The Teaching Company
  • Tokyo Girls Collection, a Japanese semi-annual fashion show
  • Tradable green certificate, a European certificate representing production of some quantity of electricity by renewable processes
  • Triple Gold Club, ice hockey players who have won the Stanley Cup, the Olympic gold medal in hockey, and the hockey World Championship