Backa is a village in Skellefteå Municipality, in Västerbotten County, Sweden. Backa lies at 58 m above sea level. It has 1,516 inhabitants. The nearest city is Skellefteå, 26 km to the southwest. Among the landmarks around are Byske Church (6.4 km), Finnträsk Church (13.4 km) and Kåge Church (17.1 km).