Sedophascolomys is an extinct genus of wombat known from the Pliocene and Pleistocene of Australia.

There is a single recognised species, S. medius, which was formerly placed in the invalid genus Phascolomys.

[2] It is estimated to be somewhat larger than extant wombats, with a body mass of 70–75 kilograms (154–165 lb).

[3] The youngest remains of the genus date to the Late Pleistocene, around 50–40,000 years ago.

[4] It is thought to be closely related to the giant wombat genera Phascolonus and Ramsayia.