The Juan Fernández Islands (Spanish: Archipiélago Juan Fernández) are a sparsely inhabited series of islands in the South Pacific Ocean, reliant on tourism and fishing. Situated 670 km (362 nmi; 416 mi) off the coast of Chile, they are composed of three main volcanic islands: Robinson Crusoe, Alejandro Selkirk, and Santa Clara. The group is part of Insular Chile.
The islands are primarily known for having been the home to the marooned sailor Alexander Selkirk for more than four years from 1704, which may have inspired English writer Daniel Defoe's Robinson Crusoe. Most of the archipelago's present-day inhabitants reside on Robinson Crusoe Island, and mainly in the capital, San Juan Bautista, located at Cumberland Bay on the island's north coast.