Marshall is a census-designated place (CDP) in northwestern Fauquier County, Virginia, in the United States.

It is named after John Marshall, the former United States Supreme Court Chief Justice who grew up at Oak Hill in nearby Delaplane.

U.S. Route 17 runs south from Marshall 12 miles (19 km) to Warrenton, the Fauquier County seat.

[3] The community sits on a low watershed divide: the north and west sides of town drain north toward Goose Creek, a tributary of the Potomac River, while the south side drains south via Carter Run to the Rappahannock River.

Although Marshall has historically been an agricultural community, its designation as one of nine service districts within Fauquier County,[4] and the only one in northern Fauquier County, has resulted in a unique set of business and professional service offerings to the mostly equestrian and agricultural interests in the surrounding region.