Sark (French: Sercq; Sercquiais: Sèr or Cerq) is a small island in the Channel Islands in the southwestern English Channel, off the coast of Normandy, France. It is a royal fief, which forms part of the Bailiwick of Guernsey, with its own set of laws based on Norman law and its own parliament. It has a population of about 600. Sark (including the nearby island of Brecqhou) has an area of 2.10 square miles (5.44 km2).
Sark is one of the few remaining places in the world where cars are banned from roads and only tractors and horse-drawn vehicles are allowed. In 2011, Sark was designated as a Dark Sky Community and the first Dark Sky Island in the world.