Parkman is a census-designated place in southern Parkman Township, Geauga County, Ohio, United States. As of the 2020 census, Parkman had a population of 282. It lies along U.S. Route 422 at its intersection with State Routes 88, 168, and 528.
Parkman was laid out in 1804. The community has the name of Samuel Parkman, an official with the Connecticut Land Company. A post office called Parkman has been in operation since 1806.