Stillwater is an unincorporated community in eastern Rush Township, Tuscarawas County, Ohio, United States. Although it is unincorporated, it has a post office, with the ZIP code of 44679. It lies at the intersection of State Routes 258 and 800.
Stillwater was originally called Lima. A post office called Stillwater has been in operation since 1837.
Coordinates: 40°19′24″N 81°18′30″W / 40.32333°N 81.30833°W