Torneträsk or Torne träsk (Swedish: [toːɳɛˈtrɛsːk];[2] Saami: Duortnosjávri; Finnish and Meänkieli: Tornio or Torniojärvi) is a lake in Kiruna Municipality, Lapland, Norrbotten County in Sweden, in the Scandinavian Mountains.

Träsk is the local word for lake (in Standard Swedish it means "swamp").

South-west of the lake lies the Abisko National Park and the UNESCO World Heritage Site Laponian area.

This low elevation permafrost is disappearing because of global warming and increased snowfall.

[3] During the 1944 Operation Obviate of WWII, British bombers seeking to destroy the German battleship Tirpitz had their rendezvous over Torneträsk, in violation of Swedish neutrality.