LSK is an English singer, songwriter and record producer, born Leigh Stephen Kenny.

LSK may also refer to:

• Lillestrøm SK, a Norwegian football club from the city of Lillestrøm
• Ljungskile SK, a Swedish football club located in Ljungskile, a town within Uddevalla Municipality
• Aurela (ICAO airline code), a charter airline based in Vilnius, Lithuania
• Low temperature shift catalyst, used in industrial fertilizer production

• End effector
• Endeis
• Endelekheia
• Endelient
• Endelienta
• Endellione
• Endellionite
• Endellion Quartet
• Endemic (biology)
• Endemic bird area
• Endemic birds of australia
• Endemic birds of borneo
• Endemic birds of eastern north america
• Endemic birds of hawaii
• Endemic birds of indonesia
• Endemic birds of japan
• Endemic birds of madagascar and western indian ocean islands
• Endemic birds of mexico and northern central america
• Endemic birds of new caledonia
• Endemic birds of new zealand
• Endemic birds of south asia
• Endemic birds of taiwan
• Endemic birds of the andaman and nicobar islands
• Endemic birds of the Indian Subcontinent
• Endemic birds of the philippines