Lecanora viridipruinosa is a species of crustose lichen in the family Lecanoraceae.

[2] Found in Alaska, it was formally described as a new species by lichenologists Måns Svensson and Toby Spribille.

The type specimen was collected from the Hoonah-Angoon Census Area in Glacier Bay National Park.

Here it was found growing on exposed argillite rock in an alpine heath at an elevation of 920 m (3,020 ft).

The specific epithet viridipruinosa refers to the greenish pruina on the discs of the apothecia.