Frostisen

or is a glacier in Narvik Municipality in Nordland county, Norway. It is one of the larger plateau glaciers in Norway. Frostisen covers an area of about 25 km2. The elevation of the glacier ranges from 840 to 1710 m above sea level. The glacier lies near the Skjomen fjord, a branch of the Ofotfjorden, just southwest of the town of Narvik. The village of Elvegård lies about 6 km east of the glacier. The lakes Geitvatnet, Isvatnet, Kjelvatnet, Nordre Bukkevatnet and Søre Bukkevatnet all lie just to the southwest of the glacier.