Old Field Point Light
| Location | Old Field, New York, Long Island north shore |
|---|---|
| Coordinates | 40°58′37.2″N 73°07′06.9″W / 40.977000°N 73.118583°W |
| Tower | |
| Constructed | 1823 |
| Foundation | Stone |
| Construction | Wood tower on granite house |
| Automated | 1991 |
| Height | 74 feet (23 m) from sea level |
| Shape | Octagonal Tower. Black. Originally white with black lantern. |
| Light | |
| First lit | 1869 (Current tower) |
| Deactivated | 1933-1991 |
| Focal height | 23 m (75 ft) |
| Lens | Fourth order Fresnel lens (original), "Modern Beacon" (current) |
| Range | 14 nautical miles (26 km; 16 mi) |
| Characteristic | Alternating Red and Green 24 s. Red Flash 12, Green Flash 12 s. |
Old Field Point Light is a lighthouse within the village of Old Field, New York between the entrances to Port Jefferson Harbor and Stony Brook Harbor on the North Shore of Long Island. The light was listed on the National Register of Historic Places in 2024.