Flag of the Autonomous Region in Muslim Mindanao
| Use | Civil and state flag |
|---|---|
| Proportion | 6:11 |
| Adopted | June 15, 1992 (ARMM) March 4, 2019 (Provisional BARMM) |
| Relinquished | August 28, 2019 (BARMM) |
| Design | A horizontal tricolor of blue, white and red with one yellow five-pointed star on the blue band; a green circle filled with yellow elements — a tilted crescent moon nearly enclosing four smaller five-pointed stars on the white band and a silver kris on the red band. |
| Official regional emblem for vertical display | |
The flag of the Autonomous Region in Muslim Mindanao was used in secondary positions of honor to the national flag of the Philippines during the region's existence.
The flag's legal basis is Muslim Autonomy Act No. 12, in which it is legally referred to as the ARMM's Official Regional Emblem. This law was passed by the ARMM Regional Legislative Assembly on 15 June 1992 and signed into law by Regional Governor Zacaria Candao on 16 July 1992. The law identifies the flag as "reflective of [the Region's] legend, historical aspirations, and cultural heritage."