Amai Manabilang, officially the Municipality of Amai Manabilang (Maranao: Inged a Amai Manabilang; Tagalog: Bayan ng Amai Manabilang), is a 3rd class municipality in the province of Lanao del Sur, Philippines. According to the 2020 census, it has a population of 12,124 people.

The municipality, formerly Bumbaran, was changed to Amai Manabilang under Muslim Mindanao Act No. 316 on January 22, 2015.

Bumbaran is named after the legendary city of Magalinday Bembaran in the Darangen, a Meranau (Maranao) epic. The scenic beauty of the town resembles the beauty of Magalinday Bembaran.

After the political efforts of Mayor James Manabilang, Bumbaran was renamed into Amai Manabilang, in honor of his own personal ancestor.

Bumbaran was commonly known before as “Aparport” its seat of government. Its existence came into being when President Ferdinand Marcos signed into law on November 17, 1977, Presidential Decree No. 1243 creating Aparport a separate and independent municipality and naming it the Municipality of Bumbaran, separate from the Municipality of Wao, its mother municipality. This was necessary in order to maximize the enforcement of law and order and expedite optimum and sustainable development.

At that time, the municipality consisted of 21 barangays namely: Sumogot, Francfort, Lambanogan, Punud, Comara, Aparport, Paglamatan, Natangcopan, Mansilano, Salam, Bandara-Ingud, Ranao-Ibaning, Bagumbayan, Pagonayan, Piagma, Lico, Siuan, Lama, Borntacan, Miorod, and Someorang. It was reduced to seventeen barangays when President Corazon Aquino signed an Executive Order in December 1986 abolishing thousands of barangays in the country which affected barangays Lama, Miorod, Borontacan, and Someorang.

On January 22, 2015, Bumbaran was renamed to Amai Manabilang by virtue of Muslim Mindanao Act No. 316. It was later confirmed through a plebiscite held on April 7, 2018.

The municipal boundaries are defined as follows: on the east by the municipality of Wao, separated by a straight line 13.65 kilometers (8.48 mi) long, drawn northward from Point 1 to Point 2 on the bank of the Maladugao river 1.5 kilometers (0.93 mi). East Sumogot on the Lanao–Bukidnon boundary as point 3; then by straight line following the Lumba - a Bayabao–Wao boundary line. Southward of the intersection of the Lana–Cotabato boundary as point 4; then finally 1.72 kilometers (1.07 mi). Eastward following the Lanao–Cotabato boundary to the starting point.

Amai Manabilang is politically subdivided into 17 barangays. Each barangay consists of puroks while some have sitios.

The town's climate is similar to that of Baguio.

Population census of Amai Manabilang

Year	Pop.	±% p.a.
1980	3,401	—
1990	4,341	+2.47%
1995	6,001	+6.26%
2000	6,589	+2.02%
2007	13,297	+10.17%
2010	8,734	−14.18%
2015	10,401	+3.38%
2020	12,124	+3.06%
Source: Philippine Statistics Authority

Amai Manabilang is composed of two major groups – 99% Muslim Bangsamoro and 1% Catholic. Catholics inhabited barangays Sumogot and Francfort. The Muslim Bangsamoros occupied the rest of the 17 barangays.

Amai Manabilang is inhabited by settlers of different origins, like Ilonggos, Ivatans, Ilocano, Bisaya and other smaller ethnic groups that dominated barangays Francfort and Sumugot. This is due to the Settlement Program and Land Tenure Laws of the Republic of the Philippines. The Moro Maranaws who came from the different municipalities of Lanao del Sur and Lanao del Norte inhabited the rest of the seventeen barangays of this municipality. Their source of livelihood is farming, mainly crop production. Having rich soil, the municipality is one of the largest corn producers in the province, only second to its mother municipality of Wao for having vast agricultural land capable of producing variable crops which could give sufficient food and income to the population.

Poverty Incidence of Amai Manabilang

10 20 30 40 50 60 70 80 2000 77.16 2003 58.90 2006 34.10 2009 37.76 2012 62.68 2015 53.67 2018 75.74 2021 31.97 Source: Philippine Statistics Authority

• Amai Manabilang Profile at the DTI Cities and Municipalities Competitive Index
• Philippine Standard Geographic Code
• Philippine Census Information
• Local Governance Performance Management System