Sebastian is an unincorporated community in northern Marion Township, Mercer County, Ohio, United States. Its elevation is 932 feet (284 m), and it is located at 40°26′39″N 84°31′0″W. Located at the intersection of Sebastian Road and County Road 716-A, the community lies south of the city of Celina, the county seat of Mercer County, and nearly 2 miles (3.2 km) northwest of the village of Chickasaw.

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Not who you're looking for? Others named Sebastian: American rapper and songwriter · album from Swedish pop/rock singer Sebastian Karlsson · 2017 film directed by James Fanizza · male given name

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From Wikipedia (CC BY-SA 4.0).