Lake Volvi, Greek: Λίμνη Βόλβη, modern: Limni Volvi) is in the prefecture of Thessaloniki, Macedonia, Greece. It is located east of Lake Koronia (Lake Lagada). The northern part of the lake is run by Via Egnatia and the old highway to the south. West is the narrows of Rentina, also known as the Macedonian Tempe since it looked like the valley of Tempe. Lake Volvi is the second largest lake in Greece. The area is 68 km² and the depth is 20 m. The municipalities with shores on the lake are Rentina, Madytos, Apollonia, Egnatia, and Sochos.
About a million years ago, Lake Volvi along with Lake Kerkinis and the entire Mygdonia was a huge lake.