The Tanafjord or Tanafjorden (Northern Sami: Deanuvuotna) is a large fjord in Finnmark county, Norway. It is located in the municipalities of Tana, Gamvik, and Berlevåg. Its orientation is mainly north-south, reaching approximately 65 kilometres (40 mi) from the small village of Smalfjord in Tana Municipality in the south to the mouth of the fjord at the Barents Sea.