Deer River may refer to a water body or a community:
Canada Deer River (Manitoba), a tributary of the Dog River
United Kingdom River Deer, a tributary of the River Tamar in Cornwall
United States Deer River (Michigan), a stream in Iron County Deer River, Minnesota, a city and a stream in Itasca County Deer River (Mississippi River), a river of Minnesota Deer River (New Hampshire), a tributary of Ossipee Lake Deer River (Black River), a tributary of the Black River (New York) An unincorporated community in Lewis County, New York, named after the stream Deer River (St. Regis River), a tributary of the St. Regis River in New York
Other Red Deer River Forked Deer River
See also Deer (disambiguation) Deer Creek (disambiguation)