GDH

GDH may refer to:

• Gajirrabeng dialect, native to Australia
• GDH 559, a Thai film production company
• Glutamate dehydrogenase
• Gonzo (company), previously GDH K.K., a Japanese anime studio
• Gordon Hill railway station, in London
• Gosford Hospital
• Grand Ducal Highness
• Gross Domestic Happiness
• Guangdong Holdings, a Chinese holding company