Meganisi is a Greek island located to the east-southeast of the island of Lefkada. The municipality includes the offshore islands of Skorpios and Sparti.

The island has three villages: the central village of Katomeri and the ports of Vathy and Spartochori. There is also a harbour at Atheni Bay used mainly by fishing boats.

Some researchers estimate that Meganisi was the Homeric island of Krocylea, which was part of Odysseus' kingdom.