Ferney is an unincorporated community and census-designated place in Brown County, South Dakota, United States.

[4] Ferney was laid out and platted in 1886 by W. H. Ferney, and named for him.

[5] According to another tradition, the name is a transfer from Ferney, France.

[6] A post office was established at Ferney in 1887, and remained in operation until it was discontinued in 1984.

This South Dakota state location article is a stub.