Dog Island Light
| Location | Dog Island, Florida, United States |
|---|---|
| Water body | St. George's Sound |
| Coordinates | 29°47′N 84°40′W / 29.78°N 84.67°W |
| Established | 1839 |
| 1839 light | |
| Construction | brick |
| Height | 50 ft (15 m) |
| Shape | truncated cone |
| First lit | 1839 |
| Deactivated | 1843 |
| Lens | 45 lamps w/ 20-in. reflectors |
| 1843 light | |
| Construction | lumber |
| Height | 40 ft (12 m) |
| Shape | truncated cone |
| First lit | 1843 |
| Deactivated | 1851 |
| 1851 light | |
| Construction | brick |
| Height | 40 ft (12 m) |
| Shape | truncated cone |
| First lit | 1851 |
| Deactivated | 1872 |
| Lens | fourth order Fresnel lens |
Several lighthouses called Dog Island Light were constructed on the western tip of Dog Island south of Carrabelle, Florida. They marked the "middle entrance to St. George's Sound," between St. George and Dog Islands, during the nineteenth century, until its collapse by a hurricane in 1873.