Candelariella deppeanae is a species of lichen in the family Candelariaceae.

Found in southwestern North America, it was formally described as a new species in 2007 by Swedish lichenologist Martin Westberg.

Here, in an oak forest, it was found growing on a decorticated (barkless) part of alligator juniper (Juniperus deppeana).

Most collections of the lichen are from the wood or trunks of this juniper plant; the species epithet deppeanae alludes to this close relationship.

[1] The lichen has a greenish-yellow to yellow, granular to areolate thallus.