Sulphur-bellied warbler

{{Short description|Species of bird}}

{{Speciesbox

| name = Sulphur-bellied warbler

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=BirdLife International |date=2017 |title=Phylloscopus griseolus |volume=2017 |page=e.T22715278A113285596 |doi=10.2305/IUCN.UK.2017-1.RLTS.T22715278A113285596.en |access-date=12 November 2021}}

| image = Sulpher-bellied Warbler (Phylloscopus griseolus)at Sindhrot near Vadodara, Gujrat Pix 175.jpg

| image_caption = At Sindhrot in the Vadodara District of Gujarat, India.

| taxon = Phylloscopus griseolus

| authority = Blyth, 1847

}}

The sulphur-bellied warbler (Phylloscopus griseolus) is a species of leaf-warbler found in the Palearctic region (Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Russian Federation [Central Asian Russia], Tajikistan and Turkmenistan). It was earlier also known by the name of olivaceous leaf-warbler.

Like other leaf-warblers, it gleans insects from small branches and leaves. It is found in rocky hill and scrub forest habitats.

The species is found in small groups and has a tendency to forage low in the vegetation, sometimes even hopping on the ground. It has a single note cheep call.