KH

• 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, a constant used in 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 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 • 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 • Kamal Haasan, Indian actor and filmmaker, sometimes abbreviated as KH in film titles (cf. KH 233) • Kalevi Heikkinen (1911–1940), Finnish war correspondent whose pen name was KH • Central Kalimantan (vehicle registration prefix KH)