Pseudotyrannochthonius australiensis is a species of pseudoscorpion in the Pseudotyrannochthoniidae family.

It was described in 1966 by Austrian arachnologist Max Beier.

[1][2] The species occurs in eastern New South Wales.

The type locality is Edith, some 11 km south-east of Oberon.

[1][2] The pseudoscorpions are terrestrial predators that inhabit plant litter.