Olpium australicum is a species of pseudoscorpion in the Olpiidae family. It is endemic to Australia. It was described in 1969 by Austrian arachnologist Max Beier.
The species occurs in Western Australia and South Australia. The type locality is Madura on the Eyre Highway in the Roe Plains. The pseudoscorpions inhabit plant litter.
The pseudoscorpions are terrestrial predators.