Lepraria juanfernandezii

{{Short description|Species of lichen}}

{{italic title}}

{{Speciesbox

| image =

| image_caption =

| taxon = Lepraria juanfernandezii

| authority = M.Kukwa (2019)

}}

Lepraria juanfernandezii is a species of dust lichen in the family Stereocaulaceae. It was formally described as a new species by Martin Kukwa in 2019. The type was collected from Robinson Crusoe Island (Juan Fernández Islands, Chile). Here it was found growing on bryophytes that were growing on a rock. It is only known from the type locality. The lichen contains divaricatic acid, a secondary metabolite known to exist in six other Lepraria species.