Meganisi (Greek: Μεγανήσι, literally "big island") is a Greekisland and municipality immediately to the east-southeast of the island of Lefkada. The municipality includes the offshore islands of Skorpios (pop. 2 persons) and Sparti. Its total population was 1,041 at the 2011 census.
The island has three villages: the central village of Katomeri (pop. 492) and the ports of Vathy (145) and Spartochori (453 inhabitants). There is also a harbour at Atheni Bay used mainly by fishing boats. Meganisi is connected with Lefkada by a car ferry service from Vathy and Spartochori. Meganisi has a school, a lyceum (middle school), banks, churches and a few squares (plateies). The island has no secondary school, so pupils attend the nearby school in Nydri, on Lefkada.