|Former counties included||Caliacra County, Constanța County, Durostor County, Ialomița County|
|Historic region||Dobruja (Northern Dobruja, Cadrilater)|
|Capital city (Reședință de ținut)||Constanța|
|Established||The administrative reform of 1938|
|Cesed to exist||Territorial loss and new administrative law (7 September 1940)|
|• Type||Rezident Regal|
|Time zone||UTC+2 (EET)|
|• Summer (DST)||UTC+3 (EEST)|
Ținutul Mării was one of the ten ținuturi ("lands") of Romania, founded in 1938 after King Carol II initiated an institutional reform by modifying the 1923 Constitution and the law of territorial administration. It comprised part of Wallachia, and included central Dobruja (the southern half of Northern Dobruja and the entire Southern Dobruja). It was named after the Black Sea, and had its capital in the city of Constanța. Ținutul Mării ceased to exist following the Treaty of Craiova and the king's abdication in 1940.
Coat of arms
The Coat of Arms is party per bend sinister by a wavy bend sinister. The dexter consists of four bends, two of azure and two of or, representing the former four counties of the Greater Romania (71 in total), which it had included. The sinister is plain azure field. Over the shield there is an argent anchor, in reference to the littoral.
Former counties incorporated
After the 1938 Administrative and Constitutional Reform, the older 71 counties lost their authority.