Candelariella immarginata is a species of parasitic, saxicolous (rock-dwelling) lichen in the family Candelariaceae.
Found in the United States, it was formally described as a new species in 2007 by Swedish lichenologist Martin Westberg.
The type specimen was collected in the desert west of Grantsville, Utah at an elevation of 4,300 ft (1,300 m); here it was found growing on dry exposed quartzite.
At the time of publication, it had also been found in another location in Utah, and two locations in Nevada; its general geographic range is the Great Basin in western North America.
The specific epithet immarginata refers to the lack of a thalline margin on the apothecia.