The islands of Chile encompass the various islands that the government of Chile has sovereignty over. By far the majority of these are the islands in the south of the country. Chile has one of the world's longest coastlines, and one of the most dangerous for boats; it is more than 4,000 kilometres (2,500 mi) long and has at least 5,000 rocky islands.
Classifications vary for isla ("island"), islote ("islet"), roquerío ("rocks"), farallón ("cliff") and archipiélago or grupo ("archipelago"). The Hydrographic and Oceanographic Service of the Chilean Navy has begun to consider island a surface greater than 100,000 m2 (1,100,000 sq ft).