KNO

Kno or KNO may refer to:
 * Kno, an American education software company
 * Collagen, type XVIII, alpha 1, a protein
 * Kno (musician) (Ryan Wisler), member of the hip hop trio CunninLynguists
 * Knockhill Racing Circuit, Fife, Scotland
 * Korea National Opera
 * Commander of the Order of the Polar Star (Swedish: Kommendör av Nordstjärneorden)
 * Kualanamu International Airport, an IATA code serving in Medan, Indonesia