The mountain robin-chat (Cossyphicula isabellae) is a species of bird in the Old World flycatcher family Muscicapidae.
It is native to the Western High Plateau. Its natural habitat is subtropical or tropical moist montane forests.
A molecular phylogenetic study published in 2023 found that the mountain robin-chat was sister to the white-bellied robin-chat. Based on this result the mountain robin-chat was moved from the genus Cossypha to the genus Cossyphicula.