The black-cheeked warbler (Basileuterus melanogenys) is a New World warbler, resident breeding bird endemic to the Talamancan montane forests of Costa Rica and western Panama.

It is normally found in oak forests with a dense bamboo understory from 2500 m altitude to the timberline, but occasionally occurs as low as 1600 m. The breeding pair builds a bulky domed nest with a side entrance on a sloping bank or in a gully, and the female lays two white eggs.

The upperparts are dull olive, the breast is olive-grey, and the belly is yellow-white.

The sexes are similar, but the young bird is browner on the upperparts, has a dull supercilium, a greyer breast, and shows two cinnamon wingbars.

The black-cheeked warbler primarily feeds on insects, spiders and other small invertebrates, taken low in the undergrowth.