Île Saint-Paul (Saint Paul Island) is an island forming part of the French Southern and Antarctic Lands (Terres australes et antarctiques françaises, TAAF) in the Indian Ocean, with an area of . The island is located about southwest of the larger Île Amsterdam, and southeast of Réunion. It is an important breeding site for seabirds. A scientific research cabin on the island is used for scientific or ecological short campaigns, but there is no permanent population. It is under the authority of a senior administrator on Réunion.