Söderby is a village in Skellefteå Municipality, in Västerbotten County, Sweden. Söderby lies at 149 m above sea level. The nearest city is Skellefteå, 43 km to the northeast. Among the landmarks around are Bygdsiljum Church (7.3 km), Burträsks kyrka (13.5 km) and Överklintens kyrka (17.4 km).