Thorn House or Thorne House may refer to:
A thorn house, another name for a Graduation tower
Places in the United States (by state) Thorn-Stingley House, Homer, Alaska, listed on the NRHP in Kenai Peninsula Borough, Alaska Thorn House (San Andreas, California), listed on the National Register of Historic Places in Calaveras County, California Parson Thorne Mansion, Milford, Delaware, listed on the NRHP in Kent County, Delaware George R. Thorne House, Midlothian, Illinois, listed on the NRHP in Cook County, Illinois Thorn House (Alberton, Montana), listed on the National Register of Historic Places in Mineral County, Montana Thorne and Eddy Estates, Morristown, New Jersey, listed on the NRHP in Morris County, New Jersey
See also W. T. Thorne Building, Minden, Nebraska, listed on the NRHP in Kearney County, Nebraska