The western greenbul (Arizelocichla tephrolaema) is a species of the bulbul family of passerine birds.

[2] Alternatively, some authorities classify the Western greenbul in the genus Pycnonotus.

The alternate name 'western mountain greenbul' is also used by the olive-breasted greenbul and the alternate name 'grey-throated bulbul' is also used by the Palawan bulbul.

Two subspecies are recognized:[4] It is found on Bioko, in western Cameroon and adjacent Nigeria.

Its natural habitats are boreal forests, subtropical or tropical moist montane forests, and subtropical or tropical dry shrubland.