Pseudocheirus is a genus of ringtail possums. It includes a single living species, the common ringtail possum of Australia, as well as the fossil Pseudocheirus marshalli from the Pliocene of Victoria.

Pseudocheiridae is a family of arboreal marsupials containing 17 extant species of ringtailed possums and close relatives. They are found in forested areas and shrublands throughout Australia and New