Langvatnet (Tysfjord)

or is a lake that lies on the border between Norway and Sweden. Almost all of the lake is located in Hamarøy Municipality in Nordland county, Norway with a very small part of the lake in Jokkmokk Municipality in Norrbotten County, Sweden. The 5.46 km2 lake is located about 20 km southeast of the village of Kjøpsvik in Tysfjord.