Nendriai is a village in Kalvarija Municipality, in Marijampolė County, Lithuania. Nendriai lies at 122 m above sea level. It has 8 inhabitants. The nearest city is Marijampolė, 16.3 km to the north. Among the landmarks around are Puńsk synagogue (21 km), Church of the Assumption in Puńsk (21 km) and Beit Midrash Synagogue (7.1 km).