HLH

HLH may refer to:

Biology and medicine

 * Hemophagocytic lymphohistiocytosis, a blood disorder
 * Basic helix–loop–helix, a structural motif in proteins
 * Hectopsyllidae, a family of parasitic fleas

Places

 * Haydom Lutheran Hospital, in Manyara Region, Tanzania
 * Ulanhot Yilelite Airport, in Inner Mongolia, China
 * Hulan District, in Harbin, China; see List of administrative divisions of Heilongjiang
 * Merrill (Marriner Wood) Hall, a dorm at Brigham Young University in Provo, Utah, U.S.; see List of Brigham Young University buildings

Other uses

 * HLH Orion minicomputer, by High Level Hardware Ltd
 * Harry Lloyd Hopkins (1890–1946), an American statesman; see George Racey Jordan
 * Hillesheimite, a mineral; see List of mineral symbols
 * Hala Air, an airline based in Sudan; see List of airline codes (H)
 * Heavy-lift helicopter, a type of military helicopter
 * Haklau Min, a variety of Min Chinese, by proposed ISO 639-3 code