Rivenoskulen is a mountain on the border of Skjåk Municipality in Innlandet county and Luster Municipality in Vestland county, Norway. The 1942 m tall mountain is located in the Breheimen mountains and inside the Breheimen National Park, about 30 km south of the village of Grotli and about 18 km northeast of Jostedal. The mountain is surrounded by several other notable mountains including Tverrådalskyrkja and Røykjeskarhøi to the east, Syrtbyttnosi to the north, and Sprongeggi to the northwest.