Alrø By is a village in Odder Municipality, in the region of Central Denmark, Denmark. Alrø By lies at 9 m above sea level. The nearest city is Horsens, 13.5 km to the west. Among the landmarks around are Illerup Ådal (23 km), Moesgaard Museum (28 km) and ARoS Aarhus Kunstmuseum (34 km). Among the natural features are Møllehøj (20 km) and Ejer Bavnehøj (19.7 km).