Primorsko – a city in southeastern Bulgaria, the administrative center of the seaside community. It located in the Burgas region, near the town of Sozopol and Tsarevo.
The town of Primorsko is situated on a small peninsula on the Black Sea, at the foot of the Strandja Mountain. Due to its location on the border of the continental temperate and Mediterranean climatic zones Primorsko is the most northerly place in Bulgaria, where citrus is grown.