KS

KS may refer to:

Kampfschwimmer, a German postwar commando frogman force
Kartagener syndrome, rare genetic disorder which causes a defect in the action of the cilia
Kamehameha Schools, independent school
Kansas (United States postal abbreviations)
Kaposi's sarcoma, tumor caused by Human herpesvirus 8 (HHV8)
Kaplan-Sheinwold, bidding system in the game of contract bridge
Kashmiri language (ISO 639 alpha-2: ks), Dardic language spoken primarily in the valley of Kashmir
Kate Spade, American fashion designer
Keratan sulfate, any of several sulfated glycosaminoglycans
Kernel streaming, method of processing streamed data
Kearny System, a parts numbering scheme developed for a Western Electric factory in Kearny, New Jersey
Kernowek Standard, an orthography for Revived Cornish
Key Stage in the UK education system
Kiasu, Hokkien (a Chinese spoken variant) word for 'extreme fear of losing' (怕输)
Kill stealing, practice in online games of stealing the rewards for defeating an enemy from other players
Kimbo Slice, Bahamian American mixed martial arts fighter
King's Scholar, scholar of Eton College denoted by the letters "KS" after the name in school lists
King's Serjeant, obsolete legal position in the United Kingdom
Klaus Schulze, a German electronic music composer and musician
Klinefelter's Syndrome, condition caused by a chromosome aneuploidy—affected males have an extra X sex chromosome
Kolmogorov–Smirnov test, goodness-of-fit test used for underlying probability distributions
Komandittselskap, Norwegian type of company
Kosovo, a disputed territory in the Balkans
Kristen Stewart, American actress
PenAir (IATA code: KS), Peninsula Airways, American airline based in Anchorage, Alaska
Katawa Shoujo, an English bishoujo-style visual novel by Four Leaf Studios