- Monkayo is a first class municipality in the province of Compostela Valley, Philippines.
- It has 21 barangays, with Mt. Diwata having the biggest population of 18,072 people.
- The Municipality of Monkayo is a political unit with a land area that was once and for a long period of time a wilderness in the Northern hinterlands of Compostela Valley but today, it is an agricultural town, with vast tracts of land planted to rice and banana.
- The municipality is also host to the gold-rich barangay of Mt. Diwata, popularly known as "Diwalwal" (which in the local dialect means one's tongue is hanging out due to exhaustion), a 1,000-meter high range known for its rich gold ore deposit.
- Monkayo's seat of government is located in Barangay Poblacion, a highly developed rural town center, and is 120 kilometres (75 mi) away from Mindanao's regional center of Davao City, and some 30 kilometres (19 mi) from Nabunturan, the provincial center.
- There are two (2) versions of the origin of the name of Monkayo.
- The name “Monkayo” is derived from a gigantic tree towering on top Tandawan mountains and its northern tip in between and immediately adjacent to the Agusan River. The tree is called “Mondabon Kayo” (Mondabon Tree). It was however shortened by the first settlers of the area as “Monkayo”.
- In the other related version, it is believed that a certain Fr. Ladour, the first missionary priest assigned in the area, gave the place the name of Moncayo, a snow-topped mountain dividing the kingdoms of Aragon and Castile, in Spain, probably as an analogy to the high mountains in the area that reminded him of his own place of birth.
Welcome to Monkayo
AboutMonkayo, Compostela Valley
Proclamation No. 857, s. 2014