The 2019 Bangsamoro autonomy plebiscite was a two-part plebiscite held in Mindanao, Philippines, that ratified the Bangsamoro Organic Law (BOL) and replaced the Autonomous Region in Muslim Mindanao (ARMM) with the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), as well as the scope of the said region.
Under the organic law, the government would have to hold the plebiscite not more than 150 days from the signing of the BOL into law (July 26, 2018) but not earlier than 90 days from the law's signing. The first part of the plebiscite was held on January 21, 2019, where voters from the ARMM voted regarding the BOL's ratification and residents of Cotabato City and Isabela City voted for or against their cities' inclusion into the then-proposed region. The second part was held on February 6 to potentially expand the BARMM; with voters from six municipalities in Lanao del Norte and 67 barangays in Cotabato province voting for or against their localities' inclusion into the BARMM.
