Lieponys is a village in Trakai District Municipality, in Vilnius County, Lithuania. Lieponys lies at 141 m above sea level. It has 29 inhabitants (2021). The nearest city is Vilnius, 44 km to the northeast. Among the landmarks around are Trakai Island Castle (27 km), Basilica of the Visitation of the Blessed Virgin Mary (26 km) and Trakai Kenesa (26 km).