The Coeur d'Alene salamander (Plethodon idahoensis) is a species of woodland salamander (Plethodon) in the family of lungless salamanders (Plethodontidae) found in northern Idaho, western Montana, and southeastern British Columbia. This species was discovered in 1939 by James R. Slater and John W. Slipp on the south shore of Lake Coeur d'Alene in northern Idaho. It was once considered to be a subspecies of Van Dyke's salamander, as P. vandykei idahoensis, but appears to be a distinct and separate species as originally suggested by Slater and Slipp (1940).