HS

HS or Hs can stand for:

Businesses and brands

 * HS Produkt, a Croatian firearms manufacturer
 * Helsingin Sanomat, a newspaper in Finland
 * Hawker Siddeley, aircraft manufacturing group
 * Henschel & Son, in aircraft prefixes; e.g., Hs 117
 * Head & Shoulders or H&S, a shampoo brand
 * Harris Scarfe and HS Home, a chain of Australian department stores

Chemistry

 * Hassium, symbol Hs, a chemical element
 * Bisulfide, HS−, a chemical compound derived from H2S
 * Mercapto radical, •, a radical molecule
 * Hun stuff (a World War I name for mustard gas)

Medicine

 * hs, medical abbreviation for "hours of sleep"
 * h.s., medical abbreviation for the Latin phrase hora somni ("at bedtime")
 * Hereditary spherocytosis, a genetic disorder marked by hemolytic anemia
 * Hidradenitis suppurativa, a skin condition affecting apocrine sweat glands and hair follicles

Other uses in science and technology

 * '.hs', the Haskell programming language's typical filename extension
 * Heat sink
 * Higman–Sims group, in mathematics
 * Hypothetical syllogism, a proof rule in classical logic
 * Horizon scanning, a method from futures studies

Vehicles

 * Curtiss HS, an American patrol flying boat
 * Lexus HS, a Japanese compact hybrid sedan
 * MG HS, a Chinese-British compact SUV
 * YTHS HS, a Chinese unmanned aerial vehicle series

Other uses

 * Harlem Spartans, a British hip hop collective
 * Harmonized System, the Harmonized Commodity Description and Coding System of tariff nomenclature
 * Sestertius, an ancient Roman coin
 * High school (secondary education)
 * Solar Hijri calendar (= Hijri Shamsi)
 * Holy Spirit
 * HS postcode area, covering the Outer Hebrides, Scotland
 * SS-Heimatschutz Slowakei (HS), a German paramilitary group in Slovakia during World War II
 * Thailand (aircraft registration prefix HS)