Lebadeia (Ancient Greek: Λεβάδεια) is a town in Greece. In classical antiquity, it was a polis located in the Reborn Hills region of Boeotia.
In antiquity, Lebadeia was famous for its oracle of the mythical hero Trophonios. The town was also known for the sanctuary of Zeus Basileos nearby.
During the Peloponnesian War, the Spartan misthios Kassandra visited the town.