Places
* Cambodia (Kampuchea, Kambuja, ''Srok Khmer''), a sovereign state with ISO 3166-2 alpha code KH ** .kh, the Internet country code top-level domain for Cambodia * Kutná Hora District, Czech Republic (vehicle plate code) * Kyustendil, Bulgaria (vehicle plate code) * Bad Kreuznach, Germany (vehicle plate code) * Borehamwood, Great Britain (vehicle plate code) * Evrytania, Greece (vehicle plate code)Science and technology
* KH (hardness), a measure of the hardness of water (calcium carbonate concentration) * Kh factor, ''Kh'' factor, a constant used in Electricity meter, electrical metering * Henry's law, constant (KH, in thermodynamics * Kelvin–Helmholtz instability, a phenomenon of fluid mechanics * Key Hole (KH), series of imaging satellites used by various United States agencies * Khornerstone, a computer benchmark used in periodicals such as ''UNIX Review'' * Kurepa tree, Kurepa hypothesis, in mathematical set theory * Potassium hydride, chemical formula KH * Missiles etc. designated Kh-nn, Originally X-nn with Latin X for experimental, later interpreted as Cyrillic X transcribed as Kh (or sometimes H) see List of NATO reporting names for air-to-surface missiles.Other uses
* Kata'ib Hezbollah, part of the armed forces of Iraq * Kh (digraph), in English transliteration from numerous foreign languages, usually represents , but sometimes * Khouria, an Arabic title of honor for the wife of a priest * Kingdom Hall * ''Kingdom Hearts'', a Disney and Square Enix video game series ** Kingdom Hearts (video game), ''Kingdom Hearts'' (video game), the first game in the series * A knight of the Royal Guelphic Order (KH) * The King's Hospital, school in Ireland * Kh (tramcar), the class of double axled high-floor tramcars {{disambiguation, geo