Hexathele cavernicola is a species of mygalomorph spider endemic to New Zealand.

[1] This species was described in 1968 by Ray Forster from female specimens collected in Waitomo.

[1] The holotype is stored in the New Zealand Arthropod Collection under registration number NZAC03014965.

The carapace and legs are bright reddish brown.

The abdomen is black with a pale area on the dorsal and anterior region.