The rufous-lored tyrannulet (Phylloscartes flaviventris) is a Near Threatened species of bird in the family Tyrannidae, the tyrant flycatchers.

Their lores and "moustache" are blackish, they have a rufous arc below the eye, and a black crescent wraps around their yellowish ear coverts.

It is found in the mountains of Yaracuy state, in the section of the Coastal Cordillera from western Carabobo east to Aragua and the Capital District, and away from the coast in Miranda and in Guatopo National Park on the Miranda-Guárico border.

It inhabits humid to wet montane evergreen forest, mostly in the upper tropical zone but also higher in cloudforest.

It typically perches horizontally on a branch, sometimes with its tail slightly cocked up, and makes short sallies to grab or hover-glean prey from leaves and twigs.

It typically forages in pairs or small family groups, and usually as part of a mixed-species feeding flock.

As of late 2024 xeno-canto had only three recordings of rufous-lored tyrannulet vocalizations and the Cornell Lab of Ornithology's Macaulay Library had only five, with some overlap between the two collections.

"Due to its habitat requirements, the species is threatened by the loss of forests within the range, mainly through logging and conversion for agriculture and livestock pastures.