The Province of Sulcis Iglesiente (Italian: Provincia del Sulcis Iglesiente; Sardinian: Provìntzia de su Sulcis Igresiente) is a province in the autonomous island region of Sardinia in Italy. It has two capitals; Carbonia and Iglesias. The province was established on April 16, 2021 and became functional on June 1, 2025. It has 118,690 inhabitants across its 24 municipalities.