KS

KS and variants may refer to:

• Kampfschwimmer, a German postwar commando frogman force
• Kansas, United States postal abbreviations
• Kaplan–Sheinwold, contract bridge bidding system
• 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
• Kernowek Standard, an orthography for Revived Cornish
• Keto-synthase, a domain of polyketide synthases with a thiol group on a cysteine side-chain
• Key Stage, a term used in the British education system
• Kiasu, Hokkien (a Chinese spoken variant) word for 'extreme fear of losing' (怕输)
• Kill stealing, a practice in online games
• King's Scholar at a UK public school
• King's Serjeant, obsolete UK legal post
• Kirk/Spock or K/S, slash fiction
• Klinefelter's Syndrome, caused by a chromosome aneuploidy
• Kolmogorov–Smirnov test, a goodness-of-fit test for probability distributions
• Kommandittselskap, a Norwegian type of company
• Norwegian abbreviation for the Norwegian Association of Local and Regional Authorities
• PenAir, Peninsula Airways, Anchorage, Alaska, US. IATA airline code
• kilosample (kS), 1000 samples of a digitized signal
• Kashmiri language, language code ISO 639 alpha-2, a Dardic language of Kashmir
• Kilosecond (ks), 1000 seconds (16 minutes, 40 seconds)

Vehicle registration plate codes

• Krems an der Donau, Austria
• Kassel, Germany
• Northampton, Great Britain
• Košice-okolie District, Slovaki

Ks (plural of K)

• Strikeouts in baseball
• Contracts in legal shorthand