Notiosorex is a genus of shrew from the subfamily Soricinae.

Notiosorex shrews have a fossil history that extends to the Miocene (i.e., mid-Hemphillian).

The geographic distribution of the genus has always been in the southwestern United States and northern Mexico.

[2] There are four described extant species of Notiosorex: There are several extinct species of Notiosorex described from the fossil record:[2]

This article about a red-toothed shrew is a stub.