Pseudograpsus setosus () is a species of edible crab endemic to the coasts of Chile, Ecuador and Peru; it is a benthic predator that lives in the subtidal and intertidal zones in temperate waters from sea levels down to depths of . Its diet consists of clams, picorocos and other crabs. Its geographic distribution ranges from the equator in Ecuador to the Taitao Peninsula at 47ð S. In Taiwan, it is known by the nickname "Hau Pei-tsun crab" in the public.