The Mansion at Fort Chiswell, also known as the McGavock Mansion and Fort Chiswell Mansion, is a historic home located at Fort Chiswell near Max Meadows, Wythe County, Virginia. It was constructed in 1839–1840, by Stephen and Joseph Cloyd McGavock, and is a two-story, Greek Revival style brick dwelling. The front facade features two-story diastyle portico composed of two provincial Greek Doric order columns supporting a pediment. It has a steep gable ends with slightly projecting end chimneys and one-story Italianate bracketed porches. It has a two-story rear ell with a frame gallery and an attached a one-story brick kitchen. It is a private residence, available for tours and events. It was listed on the National Register of Historic Places in 1972.