Roknäs is a locality in Piteå Municipality, in Norrbotten County, Sweden. Roknäs lies at 5 m above sea level. It has 1,241 inhabitants (2023). The nearest city is Piteå, 11.7 km to the east. Beaches nearby: Räkan (11 km). Among the landmarks around are Öjeby Church (7.4 km), Hortlax Church (10.2 km) and Piteå City Church (11.8 km).