Serrara Fontana is a comune (municipality) on the Ischia island, in the Province of Naples of the Italian region Campania.
It is the highest and the smallest comune of the island. It was created by the union of the former villages of Serrara and Fontana.
Its territory is composed by several small villages: Noia, Calimera, Ciglio, Succhivo, Sant'Angelo that go from the mountain to the sea.
Serrara Fontana borders the following municipalities: Barano d'Ischia, Casamicciola Terme, Forio.