Osterby, Amtsbz. Wiesby is a place, that before the Versailles Treaty belonged to German Empire and was situated in the administrative region Tondern.
Osterby, Amtsbz. Wiesby was formerly part of the German Empire. In the German Empire, the place was called Osterby, Amtsbz. Wiesby. The place is now called Østerby and belongs to Denmark.