Karnobat is a town in the Burgas Province, Southeastern Bulgaria. It is the administrative centre of the homonymous Karnobat Municipality. Karnobat municipality is situated in the south-eastern part of Bulgaria, and it falls within the administrative boundaries of Burgas region. Rishki Passage links the municipality to north Bulgaria. The Karnobat-Aitos range of the Balkan Mountains is located in the northern part of the municipality. Hisar Hill raise to the south of the town of Karnobat.