Santiago, officially the Municipality of Santiago, is a 4th class municipality in the province of Agusan del Norte, Philippines. According to the 2020 census, it has a population of 28,657 people.

Agusan del Norte, officially the Province of Agusan del Norte, is a province in the Caraga region of the Philippines. Its capital is the city of Cabadbaran with several government offices located in the highly-urbanized city of Butuan. It is bordered on the northwest by Butuan Bay; northeast by Surigao del Norte; mid-east by Surigao del Sur; southeast by Agusan del Sur, and southwest by Misamis Oriental.