Selenocosmia strenua is a species of mygalomorph spider in the Theraphosidae family.

It is found in Australia and New Guinea, and was described in 1881 by Swedish arachnologist Tamerlan Thorell.

[1][2] The type locality is Somerset, at the northern tip of the Cape York Peninsula in Far North Queensland.

[1][2] The spiders are terrestrial predators.

This Theraphosidae-related article is a stub.