Karalgiris is a village in Kaunas District Municipality, in Kaunas County, Lithuania. It has 39 inhabitants (2021). The nearest city is Kėdainiai, 24 km to the northeast. Among the landmarks around are Ninth Fort (24 km), M. K. Čiurlionis National Art Museum (29 km) and Kaunas Castle (29 km). Among the natural features are Šaravai oak (4.3 km).