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

The specific epithet leichhardti honours German explorer of northern Australia Ludwig Leichhardt (1813–c.1848) for his scientific legacy and contributions to natural history.

The colour of the cephalothorax is brown, the pedipalps, chelicerae and legs light brown, and the soft body parts pale yellow.

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

The type locality is tall sclerophyll forest in elevated terrain along Siding Spring Road, 0.9 km from Siding Spring Observatory, in the Warrumbungle National Park.