KS

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
Keenspot, a webcomics/webtoons portal founded in March 2000 by cartoonist Chris Crosby
KS, IATA code of de:AirConnect, a Romanian airline
KS, then-IATA code of PenAir, Peninsula Airways, a defunct airline based in Anchorage, Alaska, US

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' (怕输)
Sound of the Latin letter X in many languages

Kaposi's sarcoma, a tumor caused by Human herpesvirus 8 (HHV8)
Kartagener syndrome, a genetic disorder
Kallmann syndrome, a genetic disorder preventing the start or completion of puberty
Keratan sulfate, any of several sulfated glycosaminoglycans
Kernel streaming, a method of processing streamed data
Ketoacyl 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
Kolmogorov–Smirnov test, a goodness-of-fit test for probability distributions

Kammersänger, a German honorary title for a distinguished opera singer
Kaplan–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
Kashmiri Wikipedia, Wikipedia in Kashmiri-language
Strikeouts, in baseball
Contracts, in legal shorthand
Slovak koruna, the currency of Slovakia 1993–2008 and of the 1939–1945 Slovak State
Ketfom elshemy, this is the adjective of balls in Egyptian culture.