San Esteban Island mouse

{{Short description|Species of rodent}}

{{Use dmy dates|date=January 2024}}

{{Speciesbox

| name = San Esteban Island mouse

| status = CR | status_system = IUCN3.1

| status_ref = {{cite iucn |author=Álvarez-Castañeda, S.T. |date=2018 |title=Peromyscus stephani |volume=2018 |page=e.T16692A22362173 |doi=10.2305/IUCN.UK.2018-2.RLTS.T16692A22362173.en |access-date=17 November 2021}}

| genus = Peromyscus

| species = stephani

| authority = Townsend, 1912

| synonyms =

}}

The San Esteban Island mouse (Peromyscus stephani) is a species of rodent in the family Cricetidae.{{MSW3 Muroidea | id = 13000487 | page = 1078}} It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". It is endemic to Mexico, where it is known only from San Esteban Island in the northern Gulf of California.