Dermomurex cunninghamae is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
The shell has a maximum length of 18.5mm. The spire is high and acute, consisting of two and a half tightly wound, convex nuclear whorls and five postnuclear whorls.
This species occurs in the Pacific Ocean from Mexico to Panama.