Estersmark is a village in Robertsfors Municipality, in Västerbotten County, Sweden. Estersmark lies at 31 m above sea level. The nearest city is Skellefteå, 49 km to the north. Among the landmarks around are Nysätra Church (4.1 km), Lövångers kyrka (15.6 km) and Robertsfors kyrka (16.3 km).