Autonomous Region in Muslim Mindanao

The Autonomous Region in Muslim Mindanao is an autonomous region of the Philippines, located in the Mindanao island group of the Philippines, that consists of five predominantly Muslim provinces: Basilan, Lanao del Sur, Maguindanao, Sulu, and Tawi-Tawi. It is the only region that has its own government. The region's de facto seat of government is Cotabato City, although this self-governing city is outside its jurisdiction.

The ARMM previously included the province of Shariff Kabunsuan until 16 July 2008, when Shariff Kabunsuan ceased to exist as a province after the Supreme Court of the Philippines declared the "Muslim Mindanao Autonomy Act 201", which created it, unconstitutional in Sema vs. COMELEC.On October 7, 2012, President Benigno Aquino III said that the government aimed to have peace in the autonomous region and that it will become known as the Bangsamoro Autonomous Region, a compound of bangsa and Moro.