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
 * Herrera-Davis-Holland, one of the most dominant bullpen trios in baseball history.