Karaliūnai is a village in Trakai District Municipality, in Vilnius County, Lithuania. Karaliūnai lies at 167 m above sea level. It has 55 inhabitants (2021). The nearest city is Alytus, 43 km to the west. Among the landmarks around are Trakai Island Castle (21 km), Basilica of the Visitation of the Blessed Virgin Mary (21 km) and Trakai Kenesa (21 km).