Voldby is an urban Settlement in Favrskov Municipality, in the region of Central Denmark, Denmark. Voldby lies at 73 m above sea level. It has 447 inhabitants (2026). The nearest city is Silkeborg, 21 km to the west. Among the landmarks around are ARoS Aarhus Kunstmuseum (22 km), Den Gamle By (21 km) and Illerup Ådal (21 km). Among the natural features are Himmelbjerget (19.0 km) and Møllehøj (29 km).