The Henry Williams House is a historic home located in Halesite on the border with Huntington in Suffolk County, New York.

It was built about 1850 and is a 2+1⁄2-story, three-bay residence with a 1-story, four-bay west wing.

The house is representative of the American Picturesque-style.

[2] It was listed on the National Register of Historic Places in 1985.

This article about a historic property or district in Suffolk County, New York, that is listed on the National Register of Historic Places, is a stub.