Hardin is an unincorporated community in Shelby County, in the U.S. state of Ohio.
[2] The community was named for John Hardin (1753–1792), a Continental Army officer in the American Revolutionary War.
Hardin was the county seat from 1819 until 1820.
[2] A post office called Hardin was established in 1820, and discontinued in 1909.
This Shelby County, Ohio state location article is a stub.