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.Van Wert is named for Isaac Van Wart, one of the captors of Major John André in the American Revolutionary War.