Moorefield is a census-designated place (CDP) in Loudoun County, Virginia, United States.

[3] Moorefield is a mixed-use development currently in progress, located at the Ashburn station at the western terminus of the Metrorail Silver Line.

Moorefield is in the Ashburn portion of eastern Loudoun County, on the southwest side of the Dulles Greenway (Virginia State Route 267).

It is bordered to the northeast by Ashburn proper, to the northwest and west by Brambleton, and to the south by Loudoun Valley Estates.

[1] The area drains southeast toward Broad Run, a north-flowing tributary of the Potomac River.