Cantuaria mestoni is a species of mygalomorph spider in the Idiopidae family.

It was described in 1928 by Australian arachnologist Vernon Victor Hickman.

[1][2] The species occurs in Tasmania.

[2] The spiders are fossorial, terrestrial predators which construct burrows without trapdoors in grassy sites.

This article related to mygalomorph spiders is a stub.