Teufelsstein bei Lubmin, Glacial erratic monument in Lubmin, Germany.

The Teufelsstein is a granite glacial erratic measuring 6 m long, 3.6 m wide and 3.0 m high, with a circumference of 16.9 m and a volume of 34 m³. It lies on the Schorre about 25 m north of the cliff coast of the Greifswalder Bodden. A hollow on its upper surface collects rainwater.

The Teufelsstein is a granite glacial erratic carried from Scandinavia to the Greifswald Bodden by ice-sheet movement during the last Ice Age. Until 1909 it lay above the cliff; it now sits on the Schorre about 25 m north of the cliff edge and serves as a fixed survey point for measuring coastal retreat.

The name comes from an old legend where the Devil was supposed to throw this stone from Rügen Island, but it broke apart and landed here instead. Such stories shape how people living along the coast view and talk about this location today.

The stone sits directly along a coastal walking path that runs from Lubmin toward Vierow and is easy to access. The best time to visit is at low tide, when more of the rock mass is visible and you can get closer.

Scientists use this stone as a measurement point to monitor coastal erosion along the Baltic Sea. Observing these changes helps understand how the shoreline shifts over time.