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 . 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. References occidentalis Amphibians of West Africa Taxa named by Hampton Wildman Parker Amphibians described in 1931 Taxonomy articles created by Polbot