Persenbeug-Gottsdorf is a town in the district of Melk in the Austrian state of Lower Austria on the left bank of the river Danube.

The municipality has the following subdivisions: The Castle of Persenbeug, one of few private properties of the Habsburgian descendants.

The Persenbeug-Ybbs power station, being the first Austrian Danube spillway dam, built in 1954–1959.

Found on river km 2060 and serving also as a road bridge, it has now 7 turbines and there are guided tours (every afternoon, in German only).

The adjacent lock with two chambers is part of the international Danube waterway.