Yeşilköy Feneri
| Location | Yeşilköy Istanbul Turkey  | 
|---|---|
| Coordinates | 40°57′30″N 28°50′21″E / 40.95833°N 28.83917°E | 
| Tower | |
| Constructed | 1856 | 
| Construction | stone tower | 
| Height | 16 m (52 ft) | 
| Shape | octagonal prism prism tower centered on the keeper's house | 
| Markings | white tower | 
| Fog signal | blast every 30s. | 
| Light | |
| First lit | 1857 | 
| Focal height | 23 m (75 ft) | 
| Lens | 500mm catadioptric cylindrical lens | 
| Intensity | 500 W | 
| Range | 15 nmi (28 km) | 
| Characteristic | Fl W 10s. | 
Yeşilköy Feneri is a historical lighthouse still in use located on the northern coast of Sea of Marmara at Yeşilyurt neighborhood (once part of Yeşilköy) in Istanbul's Bakırköy district, Turkey.