Ben Lomond, also known as Ben Lomond Plantation, is a historic plantation house located at Bull Run, Prince William County, Virginia. It was built in 1837, and is a two-story, five bay, red sandstone dwelling with a gable roof. The house has a central-hall plan and one-story frame kitchen addition. One-story pedimented porches shelter the main (north) and rear (south) entries. Also on the property are the contributing frame two-story tenant's house, brick pumphouse, and a bunkhouse dated to the early 20th century; and a meat house, dairy, and slave quarters dated to the late-1830s.