Davao de Oro, officially the Province of Davao de Oro, is a province in the Philippines located in the Davao Region in Mindanao. Its capital is Nabunturan while Monkayo is the most populous. It used to be part of the province of Davao del Norte until it was made a separate province in 1998.
The province borders Davao del Norte to the west, Agusan del Sur to the north, and Davao Oriental to the east. To the southwest lies the Davao Gulf. The first elected governor was Jose Caballero, formerly a lawyer for a mining group in the province.