Oak Grove is a historic plantation house located near Eastville, Northampton County, Virginia.

The original section of the manor house was built about 1750, and is a 1+1⁄2-story, gambrel-roofed colonial-period structure.

It has a two-story Federal style wing added about 1811, and a two-story Greek Revival style wing added about 1840.

Also on the property are the contributing five early outbuildings, three 20th century farm buildings, and a well tended formal garden designed by the Richmond landscape architect Charles Gillette.

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