HDH

HDH could refer to:

• Dillingham Airfield, in Hawaii, United States
• Haa Dhaalu Atoll, an administrative division of the Maldives
• Hampstead Heath railway station, England
• Hawker de Havilland, an Australian aircraft manufacturer
• Hi-de-Hi!, a British sitcom
• Hipster Daddy-O and the Handgrenades, an American band
• Histidinol dehydrogenase
• Holland-Dozier-Holland, an American songwriting and production team
• Huelga De Hambre, a Peruvian band
• Kelvin Herrera, Wade Davis, and Greg Holland, a trio of American baseball pitchers with the Kansas City Royals

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