Cormocephalus sagmus is a species of centipede in the Scolopendridae family.

It is endemic to Australia, and was first described in 2019.

[1] The species occurs in the Fortescue River valley, in the Pilbara region of north-west Western Australia.

The centipedes are blind and occupy subterranean habitats.

[2] This myriapoda-related article is a stub.