Budjak or Budzhak (Russian, Ukrainian, and Bulgarian: Буджак; Turkish: Bucak, Romanian: Bugeac) is a historical region in the Odessa Oblast (province) of Ukraine. Lying along the Black Sea between the Danube and Dniester rivers, this multi-ethnic region of 13,188 km² was the southern part of Bessarabia. The region is bordered in the north and west by Moldova, in the south by Romania and in the east by the Black Sea.