Långnäs is a village in Piteå Municipality, in Norrbotten County, Sweden. Långnäs lies at 1 m above sea level. The nearest city is Piteå, 9.2 km to the east. Beaches nearby: Räkan (8.4 km). Among the landmarks around are Öjeby Church (4.5 km), Piteå City Church (9.3 km) and Hortlax Church (8.8 km).