Thoroughfare Gap Battlefield is a historic American Civil War battlefield located at Thoroughfare Gap, Broad Run, Prince William County, Virginia.

The property includes a number of resources present at the time of the battle including the separately listed Beverley Mill, a five-story, coursed-rubble stone building set into the north side of Thoroughfare Gap.

Sharpshooters used the mill's upper floor windows to defend the pass.

Historic and wayside markers are placed along Virginia Route 55 just south of the mill.

This article about a property in Prince William County, Virginia on the National Register of Historic Places is a stub.