Tordsvatnet is a lake in Skjåk Municipality in Innlandet county, Norway. The 6.32 km2 lake lies within the Tafjordfjella mountain range inside the Reinheimen National Park. The mountain lake lies about 40 km northwest of the village of Bismo. The lake lies in a low area surrounded by the mountains Benkehøa (to the east), Karitinden (to the northwest), and Vetldalseggi (to the west).