The Unadorned Rock-wallaby (Petrogale inornata) is a member of a group of closely related rock-wallabies found in northeastern Queensland, Australia. It is paler than most of its relatives and even plainer, hence its common name.
The Unadorned Rock-wallaby is patchily distributed in coastal ranges from around Rockhampton to near Townsville. This range includes the small range of the Proserpine Rock-wallaby (P. persephone), the only rock-wallaby in the region not closely related to its neighbours. Interbreeding threatens the latter species.