Tysfjorden (Lule Sami: Divtasvuodna) is a fjord in the municipality of Tysfjord in Nordland county, Norway. The fjord stretches southwards from Korsnes along the Ofoten fjord all the way to Hellmobotn, about 62 kilometres (39 mi) to the southeast (near the border with Sweden). The island of Hulløya is located about halfway through the fjord. Tysfjorden is the deepest fjord in Northern Norway reaching to 897 metres (2,943 ft) below sea level near Hulløya.