The Royal Norwegian Yacht Club (Norwegian: Kongelig Norsk Seilforening, KNS) is a yacht club in Oslo, Norway (the capital city). The club was founded in 1883 as country-wide organisation with affiliated local yacht clubs. In 1884 it was granted the right for members to fly the naval Ensign of Norway with the Royal cypher on a centrally placed white field. In 1970 it was reorganized as local club for the Oslo area, under a new nationwide federation of yacht clubs (Norges Seilforbund).