| Conventional Long Name: | Agusan |
| Common Name: | Agusan |
| Nation: | Philippines |
| Status Text: | Province of the Philippines |
| Year Start: | 1907 |
| Date Start: | August 20 |
| Date Event1: | September 1, 1914 |
| Event1: | Bukidnon sub-province separated from Agusan |
| Year End: | 1967 |
| Date End: | November 14 |
| Life Span: | 1907-1967 |
| P1: | Misamis (province)Misamis |
| Flag P1: | Flag of the United States (1896–1908).svg |
| P2: | Surigao (province)Surigao |
| Flag P2: | Flag of the United States (1896–1908).svg |
| S1: | Bukidnon |
| Flag S1: | Flag of the United States (1912-1959).svg |
| S2: | Agusan del Norte |
| Flag S2: | Flag of the Philippines (1936–1985, 1986–1998).svg |
| S3: | Agusan del Sur |
| Flag S3: | Flag of the Philippines (1936–1985, 1986–1998).svg |
| Image Map Caption: | Location of the historical province of Agusan. |
| Capital: | Butuan |
| Today: | Agusan del Norte Agusan del Sur Bukidnon |
Agusan was a province of the Philippines. It was created on August 20, 1907, by Provincial Government Act No. 1693, and dissolved on November 14, 1967, by Republic Act No. 4979.[1]
Prior to its creation as an independent province, Agusan was divided between the provinces/districts of Misamis, and Surigao during the Spanish colonial period. In 1907, Agusan was separated from Misamis, and Surigao creating the Agusan province through the sub-provinces of Bukidnon, and Butuan.[2]
The sub-province of Bukidnon became an independent province in 1914 through Act No. 2408 and Butuan sub-province assumed the name of Agusan. Both Agusan and Bukidnon were put under the Department of Mindanao and Sulu from 1914 to 1920.
In 1967, Agusan was dissolved and was split into the two provinces of Agusan del Norte, and Agusan del Sur.[3]