Halladay Farmhouse is a historic home located at Duanesburg in Schenectady County, New York.

It was built about 1786 and remodeled in the 1830s in a vernacular Greek Revival style.

It features a wide frieze pierced by rectangular eyebrow windows with ornate iron grillwork.

Also on the property are two contributing barns, a carriage house, two sheds, and a machine shop building.

[2] The property was covered in a 1984 study of Duanesburg historical resources.