Bristow is an unincorporated community in Prince William County, Virginia, United States.
The former town proper was located on SR 619, Bristow Road, about 1 mile southwest of the intersection with SR 28, Nokesville Road, at the Norfolk Southern Railway crossing. The new town center has, in general, relocated farther west around the Braemar Parkway area. Bristow is rapidly being absorbed into the expanding suburbs of the city of Manassas, including such developments as Bristow Station.
The area is mostly residential managed communities including but not limited to: Braemar Community, Bridlewood, Bridlewood Manor, Brookside, Crossman Creek, Foxborough, Kingsbrooke, New Bristow Village, Lanier Farms, Saybrooke, Sheffield Manor, Amberleigh Station, and Victory Lakes. The community is home to the Jiffy Lube Live outdoor concert stage which was formerly known as the Nissan Pavilion.
As of 2009, Bristow, Virginia has a population of 15,137. Since 2000, the town has seen a population increase of about 89%.