Cambodia (Kampuchea, Kampocha, Kamboja) — ISO 3166-2 alpha code

Kingdom Hearts — the first game in the series

Kingdom Hearts — a Disney and Square Enix video game series

Keri Hilson, an American singer and songwriter

Kelvin-Helmholtz instability — a phenomenon of fluid mechanics

KH (hardness) — a measure of the hardness of water (calcium carbonate concentration)

Kris Holm - A unicyclist

Potassium hydride

Khornerstone — a computer benchmark

Kh (digraph) — in English transliteration from numerous foreign languages, usually represents a Voiceless velar fricative (IPA: [x]), but sometimes a voiceless aspirated velar plosive (stop, tenue) (IPA: [kʰ])

Kill Hannah - A Chicago-based alternative rock band

Key Hole (KH) series of imaging satellites used by various United States agencies. See Spy satellite, United States