Folegandros (Greek: Φολέγανδρος, also Pholegandros) is a small Greek island in the Aegean Sea which, together with Sikinos, Ios, Anafi and Santorini, forms the southern part of the Cyclades. Its surface area is about 32 square kilometres (12 sq mi) and it has 667 inhabitants. It has three small villages, Chora, Karavostasis, and Ano Meria, which are connected by a paved road. Folegandros is part of the Thira regional unit.
Folegandros' landscape is varied, and includes tall cliffs and a large cave. The "capital" of the island, Chora, is built on the edge of a 200-metre high cliff. The port of Folegandros is the small town of Karavostasis. The village of Ano Meria contains a small but interesting Ecological and Folklore Museum. Among the notable beaches on Folegandros is Katergo, accessible only by boat from Karavostasis.