Jasudonys is a village in Trakai District Municipality, in Vilnius County, Lithuania. Jasudonys lies at 127 m above sea level. The nearest city is Alytus, 30 km to the west. Among the landmarks around are Trakai Island Castle (34 km), Raižiai Mosque (17.9 km) and Pilėnai (23 km). Among the natural features are A. Mickevičius oak (5.9 km).