Långträsk is a village in Norsjö Municipality, in Västerbotten County, Sweden. Långträsk lies at 218 m above sea level. The nearest city is Skellefteå, 51 km to the east. Among the landmarks around are Petiknäs Church (12.3 km), Kalvträsks kyrka (21 km) and Norsjö Church (21 km).