Cranberry Prairie is an unincorporated community in Mercer County, in the U.S. state of Ohio.
A post office called Cranberry Prairie was established in 1851, and remained in operation until 1904. Besides the post office, Cranberry Prairie had a Catholic church and a country store.
Coordinates: 40°23′34″N 84°34′50″W / 40.392867°N 84.580652°W