Winterham is a historic plantation house located near Winterham and Amelia Court House, Amelia County, Virginia, on Grub Hill Church Road. It was built about 1855 and is a two-story frame structure with a hipped roof in the Italian villa style. It has four original porches and a cross-hall plan. Also on the property are a contributing late 19th century farm dependency and early 20th century garage.

It is the only known Virginia building by Thomas Tabb Giles, a significant amateur architect, and William Percival, a significant professional architect. Giles was the son of Governor William Branch Giles, who owned Wigwam, another notable historic estate, located several miles north. A set of original architectural drawings for Winterham are housed at the Virginia Historical Society. In the 21st century, the house is privately owned and operated as a bed and breakfast and a venue for catering and weddings.

Winterham was added to the National Register of Historic Places in 2002.