Meganisi (Greek: Μεγανήσι, literally “big island”) is a Greek island 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. The municipality has an area of 22.356 km2. 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), an ATM, churches and a few squares (plateies). The island has no secondary school, so pupils attend the nearby school in Nydri, on Lefkada.
The islands climate is Mediterranean, with long spells of sunshine all through the year, the temperate but rainy winter and the warm but pleasant summer due to the cooling breeze. The 70% of Lefkada is covered by mountains. The tallest top of all is Stavrota (1.182m) with Elati (1.126 μ.) following second and St Lias (1.014 m) and Mega Oros (1.012 m) come third and fourth. On the west side of the island which is quite steep, there are many long sandy beaches. Lefkada possesses narrow plateaus, fertile valleys and canyons with rich plantation, while it also has a notable flora which includes olive trees, cypresses, a variety of pine trees, a special variety of oak, aromatic herbs and rare flowers.