Nathan Garnsey House is a historic home located near Rexford, Saratoga County, New York. It was built in 1789, and is a two-story, five-bay, double-pile, Federal style brick dwelling painted white. The house sits on a limestone foundation, has a side-gable roof, and a central chimney. The house features two small rear additions. Additionally, there is a contributing barn on the property, dated around 1850.
It was listed on the National Register of Historic Places in 2012.