Abrothallus doliiformis is a species of lichenicolous fungus in the family Abrothallaceae.

[1] Found in Peru, it was formally described as a new species in 2015 by Ave Suija and Sergio Pérez-Ortega.

The type specimen was collected from Machu Picchu (Department of Cuzco) at an elevation of 2,484 m (8,150 ft), where it was growing on the thallus of an unidentified Sticta lichen.

The species epithet doliiformis refers to its doliiform (barrel-shaped) pycnidia.

This feature, along with its hyaline, single-celled conidia (measuring 9.5–14.5 by 6–9.5 μm) distinguish it from other Abrothallus fungi.