Alksna is a village in Elektrėnai Municipality, in Vilnius County, Lithuania. Alksna lies at 142 m above sea level. The nearest city is Vilnius, 23 km to the east. Among the landmarks around are Trakai Island Castle (8.6 km), Vilnius Cathedral (22 km) and National Museum of Lithuania (22 km). Among the natural features are Tauras Hill (21 km) and Viktoras Bergas oak (5.2 km).