The Deane-Williams House is a historic house in Cambridge, Massachusetts. This two story brick house was built in 1848, and is of an extremely unusual Italianate style. The overhang of its roof is deep, even for that style, and is studded with large paired brackets. The house is stuccoed, and at one time the stucco was incised to resemble ashlar stone. Its porches and balconies have ironwork railings that are unique in the city.