Carbonated sierra finch

{{short description|Species of bird}}

{{speciesbox

| image = Carbonated Sierra-finch (Phrygilus carbonarius) (15775486009).jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=BirdLife International |author-link=BirdLife International |year=2016 |title=Porphyrospiza carbonaria |page=e.T22723105A94803660 |doi=10.2305/IUCN.UK.2016-3.RLTS.T22723105A94803660.en |access-date=18 January 2024}}

| genus = Rhopospina

| species = carbonaria

| authority = (Lafresnaye & d'Orbigny, 1837)

| synonyms = Phrygilus carbonarius

Rhopospina carbonaria

Corydospiza carbonaria

| range_map = Phrygilus carbonarius map.svg

}}

The carbonated sierra finch (Rhopospina carbonaria), also known as the carbon sierra finch, is a species of bird in the family Thraupidae.

It is endemic to Argentina where its natural habitats are subtropical or tropical dry shrubland and temperate grassland.