Šėtijai is a village in Šakiai District Municipality, in Marijampolė County, Lithuania. Šėtijai lies at 65 m above sea level. It has 39 inhabitants (2021). The nearest city is Kaunas, 24 km to the east. Among the landmarks around are Ninth Fort (21 km), M. K. Čiurlionis National Art Museum (25 km) and Kaunas Castle (24 km). Among the natural features are Lekėčiai spring (3.0 km).