Millbank is a historic home and archaeological site and national historic district located near Port Conway, King George County, Virginia. It encompasses 1 contributing building, 8 contributing sites, and 1 contributing structure. Among the archaeological sites are the A. Fitzhugh Plantation Site including the smokehouse and chimney / kitchen sites; the Ballentine Site; the Brick Rubble Site; the Nail Field Site; the Old House Swamp Pointe Site; and a probable Mill Site. The current house is an I-house dwelling built about 1900 on a basement dating to the 18th century. The plantation was initially settled in 1669; the land has been the site of residential occupation and agricultural endeavors since that time.

It was listed on the National Register of Historic Places in 2005.