William Smith House, also known as Jonas Smith House and Boidock House, is a historic home located at Hamilton, Loudoun County, Virginia.

It was built about 1813–1820, and is a two-story, three-bay, Federal style brick dwelling.

Also on the property are the contributing brick barn with diamond-patterned ventilation holes (ca 1813), two-story springhouse (c. 1813), a wide loafing shed, a large corncrib, and two-car garage (c.

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

[1] This article about a property in Loudoun County, Virginia on the National Register of Historic Places is a stub.