Tyrannochthonius laevis is a species of pseudoscorpion in the Chthoniidae family. It is endemic to Australia. It was described in 1966 by Austrian arachnologist Max Beier.
The species occurs in the Kimberley region of North West Australia. The type locality is the Kimberley Research Station, Kununurra.
The arachnids are terrestrial predators.