Chocolate-vented tyrant

{{Short description|Species of bird}}

{{speciesbox

| image = Chocolate-vented Tyrant (Neoxolmis rufiventris) (15960622505).jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=BirdLife International |date=2016 |title=Neoxolmis rufiventris |volume=2016 |page=e.T22700069A93760286 |doi=10.2305/IUCN.UK.2016-3.RLTS.T22700069A93760286.en |access-date=12 November 2021}}

| genus = Neoxolmis

| species = rufiventris

| synonyms = T[yrannus] Rufiventris (protonym)

| authority = (Vieillot, 1823) Vieillot, 1823. T[yrannus] Rufiventris (protonym). Tabl. Enc. Méth., Ornith, 2, livr. 93, p. 856 [https://www.biodiversitylibrary.org/page/51117213 BHL]

| range_map = Neoxolmis rufiventris map.svg

}}

The chocolate-vented tyrant (Neoxolmis rufiventris) is a species of bird in the family Tyrannidae. The species was first scientifically described by Vieillot in 1823.

It breeds in southern Argentina, Chile and Tierra del Fuego; during the austral winter it migrates north to the Pampas.

Its natural habitat is temperate grassland.