Unnuakomys is an extinct genus of metatherian mammal from the Maastrichtian age of the Late Cretaceous.

The known fossil material of Unnuakomys consists of over 60 teeth, along with multiple dentaries and a maxillary fragment.

These fossils are from the Pediomys Point locality of the Prince Creek Formation.

[1] The generic name Unnuakomys is derived from "Unnuak" (pronounced Oo-noo-ok), an Iñupiaq word for night, combined with the Greek "mys", meaning mouse.

The specific name honors paleontologist J. Howard Hutchison, who discovered the Pediomys Point locality.