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.