Ostvik is a locality in Skellefteå Municipality, in Västerbotten County, Sweden. Ostvik lies at 24 m above sea level. It has 546 inhabitants (2023). The nearest city is Skellefteå, 15.5 km to the southwest. Beaches nearby: Boviksbadet (12 km). Among the landmarks around are Lejonströmsbron (16.4 km), Kåge Church (6.5 km) and Gravfält (7.4 km).