Van Wert is a city in and the county seat of Van Wert County, Ohio, United States. The municipality is located in northwestern Ohio. The population was 10,846 at the 2010 census. It is the principal city of and is included in the Van Wert Micropolitan Statistical Area, which is included in the Lima-Van Wert-Wapakoneta, Ohio Combined Statistical Area.
The name Dean is of English origin. The meaning of Dean is valley. Dean is generally used as a boy's name. It consists of 4 letters and 1 syllable and is pronounced Dean.
The place is recorded in the Domesday Book of 1086 as Rovecestre. Rochester in Northumberland is thought to have been named from the place in Kent, or the first element may be the Old English hroc, rook. The modern surname from either of these sources can be found as Rochester, Rogister, and Rossiter.