Rånbyn is a village in Luleå Municipality, in Norrbotten County, Sweden. Rånbyn lies at 12 m above sea level. It has 56 inhabitants. The nearest city is Luleå, 30 km to the southwest. Among the landmarks around are Boden Fortress (30 km), Nederluleå Church (26 km) and Luleå Cathedral (31 km).