THG may refer to:

• THG plc, an e-commerce company
• THG Sports, a former sports ticketing and corporate hospitality company
• Hanover Insurance, by NYSE symbol

• Tetrahydrogestrinone, an anabolic steroid
• The Humble Guys, a 1990s IBM PC cracking group
• Third-harmonic generation, in nonlinear optics
• Thangool Airport, by IATA code
• The Hunger Games, Young-Adult book series by Suzanne Collins

This disambiguation page lists articles associated with the title THG.
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