Astylosternus occidentalis is a species of frog in the family Arthroleptidae.

It is found in southern Guinea, Sierra Leone, Liberia, and western Ivory Coast from sea level to elevations of about 1,300 m (4,300 ft).

[1][2] Its natural habitats are secondary and primary forests.

It is a secretive species that breeds in shallow streams.

Habitat loss (deforestation) is a threat to this species.