Lake Techirghiol
| Lacul Techirghiol | |
|---|---|
| Lake Techirghiol | |
| Location | Northern Dobruja | 
| Coordinates | 44°2′30″N 28°38′00″E / 44.04167°N 28.63333°E | 
| Lake type | Brackish | 
| Basin countries | Romania | 
| Surface area | 11.6 km2 (4.5 sq mi) | 
| Max. depth | 9 m (30 ft) | 
| Designated | 23 March 2006 | 
| Reference no. | 1610 | 
Techirghiol is a lake in Northern Dobruja, Romania, located by the towns of Eforie and Techirghiol, near a Ramsar site. It is separated from the Black Sea coast by a narrow strip of land on which the national road DN39 (part of European route E87) and the CFR Main Line 800 run, joining the port cities of Constanța and Mangalia.