Monkayo, officially the Municipality of Monkayo (Cebuano: Lungsod sa Monkayo; Filipino: Bayan ng Monkayo), is a 1st class municipality in the province of Davao de Oro, Philippines. According to the 2020 census, it has a population of 93,937 people, making it the most populous town in the province. Monkayo's seat of government is located in Barangay Poblacion.