, , or is a lake on the border between Norway and Sweden. Most of the lake is located in Storuman Municipality in Västerbotten County (southern Swedish Lapland) in Sweden. A small part of the lake, known as Umbukta, is located in Rana Municipality in Nordland County in Norway. The European route E12 highway runs along the eastern side of the lake. The lake lies just southeast of the large lake Storakersvatnet.