Eimhjellevatnet or Emhjellevatnet (also known as Storfjorden) is a lake in Hyen area of Gloppen Municipality in Vestland county, Norway.

The villages of Eimhjellen and Solheim can be found along its shore and the village of Straume lies about 15 kilometres (9.3 mi) to the north.

The lake lies about 25 kilometres (16 mi) southwest of the municipal center of Sandane.

It is the second largest lake in all of Gloppen municipality (after Breimsvatn) and it has a good population of trout for fishing.

This article related to a lake in Vestland in Norway is a stub.