Daumėnai is a village in Biržai District Municipality, in Panevėžys County, Lithuania. Daumėnai lies at 46 m above sea level. It has 50 inhabitants (2021). The nearest city is Panevėžys, 50 km to the southwest. Near the border: Latvia, 15 km. Among the landmarks around are Biržai Castle (9.1 km), Rundāle Palace (47 km) and Church of the Assumption of Mary in Skaistkalne (25 km). Among the natural features are Cow cave (6.9 km).