Kapatagan, officially the Municipality of Kapatagan (Maranao: Inged a Kapatagan; ; ), is a municipality in the province of Lanao del Norte, Philippines. According to the 2024 census, it has a population of 72,762 people.
Kapatagan is derived from the Visayan word "patag" meaning plain or valley.
Kapatagan has a total land area of 25,048.41 hectares, including the area now being contested by the municipality of Lala with an approximate area of 759 hectares.
On the southern and eastern sides of the locality are mountains. Offsetting the mountain is the presence of flat coastal lands and valley.
It has five major rivers that flow to Panguil Bay, namely: Maranding, Panoloon, Butadon, Kidalos, and Balili.
The Cathedral Falls and Santa Cruz waterfalls are located at Barangays Cathedral Falls, Santa Cruz, and Waterfalls respectively. At present, the spring supplies water into Poblacion and some neighboring barangays.
Kapatagan is politically subdivided into 33 barangays. Each barangay consists of puroks while some have sitios.
The Municipality has a tropical climate. The dry season starts in October and ends in June. Wet season begins in July and ends in December.