Leirvasshøi is a mountain in Skjåk Municipality in Innlandet county, Norway. The 1728 m tall mountain is located in the Breheimen mountains and inside the Breheimen National Park, about 18 km southwest of the village of Grotli and about 20 km east of the village of Oppstryn. The mountain is surrounded by several other notable mountains including Kvitlenova and Raudeggi to the north, Mårådalsfjellet and Skridulaupen to the northeast, Dyringshøi to the east, Søverhøi to the southeast, and Tverreggi to the south. The vast Jostedalsbreen glacier lies just to the southwest of this mountain.