Tate's fat-tailed mouse opossum (Thylamys tatei) is a species of opossum in the family Didelphidae,[2] named after American zoologist George Henry Hamilton Tate.

[3] It is found at elevations of 300 to 3,000 m along the coast of central Peru.

[1] The species has the northernmost range of any member of its genus.

[1] It has white ventral fur and short condylobasal and zygomatic lengths.

This article about a marsupial is a stub.