The Archipelago of Sulcis (in ItalianArcipelago del Sulcis or Sulcitano) is located off the coast of Sardinia, and is part of the Province of South Sardinia. The archipelago is 160 square kilometres (62 sq mi) in land area.
Two principal islands, Sant'Antioco and San Pietro, respectively 108 square kilometres (42 sq mi) and 51 square kilometres (20 sq mi), make up the archipelago. It also contains several small islands: Isola Piana, Isola il Toro, Isola la Vacca, Isola del Corno and Isola dei Ratti. Of these only Isola Piana, 0.2 square kilometres (0.077 sq mi), is inhabited.