Lantry is an unincorporated community and a census-designated place (CDP) in Dewey County, South Dakota, United States.

The population of the CDP was 33 at the 2020 census.

[4] According to the Federal Writers' Project, the origin of the name Lantry is obscure.

[5] It is in the Eagle Butte School District,[7] which jointly operates Cheyenne-Eagle Butte School with the Bureau of Indian Education (BIE).

This South Dakota state location article is a stub.