KS and variants may refer to:
Businesses and organizations
- Kampfschwimmer, a German postwar commando frogman force
- Kommandittselskap, a Norwegian type of company
- Norwegian Association of Local and Regional Authorities
- PenAir, Peninsula Airways, Anchorage, Alaska, US (IATA airline code)
Language
- Kashmiri language, a Dardic language of Kashmir (ISO 639 alpha-2 language code "ks")
- Kernowek Standard, an orthography for Revived Cornish
- Kiasu, Hokkien (a Chinese spoken variant) word for 'extreme fear of losing' (æè¾")
Places
- Kansas (US postal abbreviation KS)
- Krems an der Donau, Austria (vehicle plate code)
- Kassel, Germany (vehicle plate code)
- Khatumo State, an unrecognised proto-state in northern Somalia
- Northampton, Great Britain (vehicle plate code)
- Košice-okolie District, Slovaki (vehicle plate code)
Science, technology, and mathematics
- Kaposi's sarcoma, a tumor caused by Human herpesvirus 8 (HHV8)
- Kartagener syndrome, a genetic disorder
- Keratan sulfate, any of several sulfated glycosaminoglycans
- Kernel streaming, a method of processing streamed data
- Keto-synthase, a domain of polyketide synthases with a thiol group on a cysteine side-chain
- kilosample (kS), 1000 samples of a digitized signal
- Kilosecond (ks), 1000 seconds (16 minutes, 40 seconds)
- Klinefelter's Syndrome, caused by a chromosome aneuploidy
- Kolmogorovâ"Smirnov test, a goodness-of-fit test for probability distributions
Other uses
- Kaplanâ"Sheinwold, a contract bridge bidding system
- Key Stage, a term used in the British education system
- Kill stealing, a practice in online games
- King's Scholar, at a UK public school
- King's Serjeant, an obsolete UK legal post
- Kirk/Spock or K/S, slash fiction
- Strikeouts, in baseball
- Contracts, in legal shorthand