Brattknabben is a village in Piteå Municipality, in Norrbotten County, Sweden. Brattknabben lies at 116 m above sea level. The nearest city is Piteå, 27 km to the east. Among the landmarks around are Sikfors gamla kraftstation (13.6 km), Öjeby Church (22 km) and Piteå City Church (27 km).