Marmara region - Discover Turkey
The Marmara Region (Turkish: Marmara Bölgesi) is a geographic region of Turkey. It is located in northwestern Turkey, bordering Greece and the Aegean Sea to the west, Bulgaria and the Black Sea to the north, the Black Sea region to the east, and the Aegean Sea region to the south. At the center of the region is the Sea of Marmara, from which the region takes its name. The largest city in the region is Istanbul.