Bartkūnai is a village in Biržai District Municipality, in Panevėžys County, Lithuania. Bartkūnai lies at 64 m above sea level. The nearest city is Panevėžys, 35 km to the southwest. Among the landmarks around are Biržai Castle (28 km), Beržėnai Manor (14.4 km) and Former synagogues in Vabalninkas (3.2 km).