Cambarus subterraneus, the Delaware County cave crayfish, is a species of crayfish in the family Cambaridae.

It has been found only in three caves in Delaware County, Oklahoma.

[3][4][1] The IUCN conservation status of Cambarus subterraneus is "CR", critically endangered.

The species faces an extremely high risk of extinction in the immediate future.

This crayfish article is a stub.