Southern Bulgaria (,
Yuzhna Balgariya) is the southern half of the territory of
Bulgaria, located to the south of the main ridge of the
Balkan Mountains which conventionally separates the country into a northern and a southern part. Besides the Balkan Mountains, Southern Bulgaria borders
Serbia to the west, the
Republic of Macedonia to the southwest,
Greece to the south,
Turkey to the southeast and the
Bulgarian Black Sea Coast to the east.