KOH

Koh or KOH may refer to:

Chemistry

 * Potassium hydroxide, formula "KOH"
 * KOH test, a procedure in which potassium hydroxide is used to dissolve skin and reveal fungal cells under the microscope

People

 * Koh (surname), a surname with various origins, including:
 * Xǔ (surname), a Chinese surname sometimes spelled as Koh based on its pronunciation in Southern Min dialects
 * Ko (Korean surname), occasionally spelled as Koh

People with the given name Koh include:
 * Koh Gabriel Kameda (born 1975), German-Japanese concert violinist and violin teacher
 * Koh Kojima or Kō Kojima (born 1928), Japanese manga artist
 * Koh Masaki or Kō Masaki (1983–2013), Japanese gay pornographic film actor
 * Koh Traoré (born 1989), Burkinabé born Ivorian football player
 * Koh Yasuda (1907–1943), Japanese ophthalmologist, first director of Amami Wakoen Sanatorium, a leprosy sanatorium in Japan

Places

 * Koh (កោះ Kaôh ), a Khmer word meaning 'island', found in names of islands of Cambodia
 * Koh (เกาะ), a Thai loanword from Khmer meaning 'island', found in names of islands of Thailand
 * Koh (کوه), a Dari word meaning 'mountain', found in names of mountains of Afghanistan
 * Koh (کوه), an Urdu loanword from Persian meaning 'mountain', found in names of mountains of Pakistan

Other

 * Koh the Face Stealer, a character in Avatar: The Last Airbender
 * King of the Hammers, an off-road race in Johnson Valley, California, United States