River House, also known as The Ferry Farm, is a historic plantation house located near Millwood, Clarke County, Virginia. It was built about 1820, and is a two-story, five bay, rubble limestone dwelling in a vernacular Federal-style. It has a gable roof with wide interior-end chimneys. Also on the property is a rare three-part slave or servants' house and an early smokehouse.
It was listed on the National Register of Historic Places in 1993. It is located in the Greenway Historic District.