Wetalth Ridge is an isolated ridge in northern British Columbia, Canada, located 74 km (46 mi) southwest of Tatogga and south of Telegraph Creek. It lies on the southwest side of Little Arctic Lake at the southwest corner of Mount Edziza Provincial Park.
Wetalth Ridge was named on January 2, 1980 by the Geological Survey of Canada to recall a small group of wandering and exploited outcasts from the Tahltans called "Wetalth" people.
Wetalth Ridge is a volcanic feature associated with the Spectrum Range volcanic complex which in turn form part of the Northern Cordilleran Volcanic Province. It is a subglacial mound that formed in the Pleistocene period when this area was buried beneath glacial ice during the last ice age.