Kanuni Sultan Süleyman, 10st sultan of Ottoman Empire

Kirby Super Star

Kearn-Sayre syndrome - a disease caused by mitochondrial DNA deletion

The Basketball Federation of Serbia ((Serbian: Кошаркашки Савез Србије / Košarkaški Savez Srbije))

The Communist Party of Slovakia (Slovak: Komunistická strana Slovenska)

The Japanese anime studio, KSS (ケイエスエス, KSS^?)

The Knightswood Secondary School in Scotland

The Kwalikum Secondary School in British Columbia