Leirhøi or Leirhøe is a mountain in Lom Municipality in Innlandet county, Norway.

The mountain sits about 28 kilometres (17 mi) south of the village of Fossbergom and about 47 kilometres (29 mi) southwest of the village of Vågåmo.

[1] The mountain is named after the lake Leirtjønne or the brook Leirgrove.

The last element is the finite form of hø which means '(large) round mountain'.

The last element in the name of the river is the finite form of grov which means 'brook'.