Provinces of Bangsamoro

Sulu, officially the Province of Sulu (Tausūg: Wilāya sin Lupa' Sūg; Tagalog: Lalawigan ng Sulu), is a province of the Philippines in the Sulu Archipelago.

Tawi-Tawi, officially the Province of Tawi-Tawi (Tausug: Wilaya' sin Tawi-Tawi; Sinama: Jawi Jawi/Jauih Jauih; Tagalog: Lalawigan ng Tawi-Tawi), is an island province in the Philippines located in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM). The capital of Tawi-Tawi is Bongao.

Basilan, officially the Province of Basilan (Chavacano: Provincia de Basilan; Yakan: Wilayah Basilanin; Tausug: Wilaya' sin Basilan; Filipino: Lalawigan ng Basilan), is an island province of the Philippines located primarily in the Bangsamoro Autonomous Region. Basilan Island is the largest and northernmost of the major islands of the Sulu Archipelago. It is just off the southern coast of the geographic Zamboanga Peninsula.

Lanao del Sur (Tagalog: Timog Lanao; Meranaw and Iranun: Pagabagatan Ranao), officially the Province of Lanao del Sur, is a province in the Philippines located in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM). The capital is the city of Marawi (the most populous in the province), and it borders Lanao del Norte to the north, Bukidnon to the east, and Maguindanao del Norte and Cotabato to the south. To the southwest lies Illana Bay, an arm of the Moro Gulf.

Maguindanao (Maguindanaon: Dairat nu Magindanaw; Iranun: Perobinsia a Magindanao; Filipino: Lalawigan ng Maguindanao) was a province of the Philippines located in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM). From 2014 to 2022, its provincial capital was Buluan, but the legislative branch of government, the Maguindanao Provincial Board, convened at the old provincial capitol in Sultan Kudarat. It bordered Lanao del Sur to the north, Cotabato to the east, Sultan Kudarat to the south, and Illana Bay to the west.

Maguindanao del Sur, officially the Province of Maguindanao del Sur (Maguindanaon: Dairat nu Salatan Magindanaw, Jawi:دايرت نو سلاتان مڬیندانو, Filipino: Timog Maguindanao), is a landlocked province in the Philippines located in the Bangsamoro region in Mindanao. Its capital is the municipality of Buluan near the city of Tacurong in the neighboring province of Sultan Kudarat. It borders Cotabato province to the east, Maguindanao del Norte to the west, and Sultan Kudarat to the south.

Maguindanao del Norte, officially the Province of Maguindanao del Norte (Maguindanaon: Dairat nu Utara Magindanaw, Jawi: دَاِيْرَتْ نُوْ اُوْتَرَ مَڬِنْدَنَوْ; Iranun: Perobinsia a Pangutaran Magindanao, ڤروبنسيا ا ڤڠوترن مڬیندانو Filipino: Hilagang Maguindanao), is a province in the Philippines located in the Bangsamoro region in Mindanao. Its capital is the municipality of Datu Odin Sinsuat. It borders Cotabato province to the east, Lanao del Sur to the north, Maguindanao del Sur to the south-east, and Sultan Kudarat to the south.