Catharpin is an unincorporated community in Prince William County, Virginia, in the United States. Catharpin lies on State Route 234 to the northwest of Manassas National Battlefield Park. Geography Catharpin is characterized by rolling fields, wide meadows, and gravel/dirt roads, and many of the rural folk capitalize on the abundant land and have farms with livestock. It is not uncommon to see horses roaming on of land. Notable residents Ben Sanders, former MLB pitcher for the Philadelphia Phillies, Philadelphia Athletics, and Louisville Colonels Jennie Dean (1848-1913), African American educator and missionary References Unincorporated communities in Prince William County, Virginia Washington metropolitan area Unincorporated communities in Virginia