Gjelleråsen is an area which constitutes part of Oslomarka outside Oslo, Norway. The area is bordered by Skedsmo to the east and Nittedal to the north. There are many historic roads running through the area, and two modern highways, Norwegian National Road 4 to the north, and European route E6 to the south. The name of Gjelleråsen may come from Gjølluraas, or Gjoleid, which means "windy area", or from Gjøl - Gjel, which describes an inlet close to the road in the area. It may also come from the verb Gjalla, a sound as from an echo.