The Peruvian small-eared shrew (Cryptotis peruviensis) is a species of mammal in the family Soricidae. It is known only from northern Peru, where it has been found in shrubby "elfin" cloud forest in the Andes at elevations from . The species may also be present in Ecuador. It has the southernmost range of any shrew in South America. (The restricted range of shrews in South America is a reflection of their limited mobility and relatively recent arrival from Central America as part of the Great American Interchange.)