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

Science and technology

Chemistry

• Hassium, a chemical element with symbol 'Hs'
• Bisulfide, HS⁻, a chemical compound derived from H₂S
• Mercapto radical, HS^•, 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
• Higman–Sims group, in mathematics
• Hypothetical syllogism, a proof rule in classical logic

Other uses

• Harmonized System, the Harmonized Commodity Description and Coding System of tariff nomenclature
• Sestertius, an ancient Roman coin
• High school (secondary education)
• Lexus HS, a hybrid car produced by Toyota
• HS postcode area, covering the Outer Hebrides, Scotland