George Underhill House

George Underhill House, also known as Wayside, is a historic home located at Locust Valley in Nassau County, New York, USA. It is a rambling U-shaped wood-frame house with 1-, $1 1/2$- and 2-story sections dated to about 1790. The original section is a $1 1/2$-story timber-frame structure with a moderately pitched gable roof. Also on the property is a $1 1/2$-story, wood-frame tenant house.

It was listed on the National Register of Historic Places in 2003.