Marbella is a city and municipality in southern Spain, belonging to the province of Málaga in the autonomous community of Andalusia. It is part of the Costa del Sol and is the headquarters of the Association of Municipalities of the region; it is also the head of the judicial district that bears its name. Marbella is situated on the Mediterranean Sea, between Málaga and the Strait of Gibraltar, in the foothills of the Sierra Blanca.