| Smith Estate | |
| Nearest City: | Ridge, New York |
| Coordinates: | 40.8681°N -72.9067°W |
| Built: | 1790 |
| Architecture: | Colonial Revival, Gothic |
| Added: | December 10, 1981 |
| Refnum: | 81000414 |
Smith Estate, also known as Longwood Estate - Smith House, is a historic estate located at Ridge in Suffolk County, New York. It is preserved and maintained by the Town of Brookhaven. The Longwood Estate is part of a huge parcel of land originally purchased by William "Tangier" Smith in the 17th century, which he called Manor St. George. The estate consists of a large, late 18th century main house (altered and enlarged during the 19th century), caretaker's cottage, a farm complex (of barns and sheds dating from the late 18th through early 20th centuries), the Smith family cemetery, and a small frame schoolhouse moved to the property in 1977.[1]
It was added to the National Register of Historic Places in 1981.