Davao Region, formerly called Southern Mindanao, is an administrative region in the Philippines, designated as Region XI. Situated at the southeastern portion of Mindanao, enclosing Davao Gulf, it comprises five provinces: Davao de Oro, Davao del Norte, Davao del Sur, Davao Oriental, and Davao Occidental. Davao City is the region's sole highly urbanized city, as well as its regional center.