thumb|300px|Location of Washington County in New York
List of the National Register of Historic Places listings in Washington County, New York
This is intended to be a complete list of properties and districts listed on the National Register of Historic Places in Washington County, New York. The locations of National Register properties and districts (at least for all showing latitude and longitude coordinates below) may be seen in a Google map by clicking on "Map of all coordinates". One property, the Lemuel Haynes House, is further designated a U.S. National Historic Landmark.

__NOTOC__

County-wide listings

See also

• National Register of Historic Places listings in New York