The Iranun are an ethnic group

Ethnic group

An ethnic group is a group of people whose members identify with each other, through a common heritage, often consisting of a common language, a common culture and/or an ideology that stresses common ancestry or endogamy...

 of Mindanao

Mindanao

Mindanao is the second largest and easternmost island in the Philippines. It is also the name of one of the three island groups in the country, which consists of the island of Mindanao and smaller surrounding islands. The other two are Luzon and the Visayas. The island of Mindanao is called The...

, Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

 and the west coast of Sabah

Sabah

Sabah is one of 13 member states of Malaysia. It is located on the northern portion of the island of Borneo. It is the second largest state in the country after Sarawak, which it borders on its southwest. It also shares a border with the province of East Kalimantan of Indonesia in the south...

, Malaysia, in 25 villages around the Kota Belud

Kota Belud

Kota Belud is a town located in West Coast Division, in the center of Sabah, east Malaysia on the island of Borneo. Its population was estimated to be around 72,337 in 2000, almost evenly divided between ethnic Dusun and Bajau with a sizeable proportion of Chinese ethnicity...

 and Lahad Datu

Lahad Datu

Lahad Datu is a town and district located in Tawau Division, in the east of Sabah, eastern Malaysia on the island of Borneo. It occupies the peninsula on the north side of Darvel Bay. Its population was estimated to be around 118,000 in 1991 and 156,059 in the 2000 census. Lahad Datu is surrounded...

 districts; also in Kudat

Kudat

Kudat is a town in Sabah, East Malaysia, on the northern tip of Borneo island. It serves as the administrative center for the Kudat Division, which includes the towns of Kudat, Pitas, Kota Marudu, and some offshore islands....

 and Likas

Likas

Likas is a sub-district in the city of Kota Kinabalu, Malaysia. Sabah's largest sports centre, Likas Sports Complex, is located here....

, Kota Kinabalu

Kota Kinabalu

Kota Kinabalu , formerly known as Jesselton, is the capital of Sabah state in East Malaysia. It is also the capital of the West Coast Division of Sabah. The city is located on the northwest coast of Borneo facing the South China Sea. The Tunku Abdul Rahman National Park lies on one side and Mount...

. Their current population is estimated to be around 1,000,000-1,500,000 (2008 est).

For centuries, the Illanun were regarded as the fiercest pirates in the Malay world. It is thought that the Malay word for pirate, 'lanun', derives from the word Illanun. Originally from the area around Lake Lanao

Lake Lanao

Lake Lanao is a large lake in the Philippines, located in Lanao del Sur province in the country's southern island of Mindanao. With a surface area of 340 km²...

 in southern Mindanao

Mindanao

Mindanao is the second largest and easternmost island in the Philippines. It is also the name of one of the three island groups in the country, which consists of the island of Mindanao and smaller surrounding islands. The other two are Luzon and the Visayas. The island of Mindanao is called The...

, Illanun colonies spread from Sumatra

Sumatra

Sumatra is an island in western Indonesia, westernmost of the Sunda Islands. It is the largest island entirely in Indonesia , and the sixth largest island in the world at 473,481 km2 with a population of 50,365,538...

 through the Sulu Archipelago

Sulu Archipelago

The Sulu Archipelago is a chain of islands in the southwestern Philippines. This archipelago is considered to be part of the Moroland by the local rebel independence movement. This island group forms the northern limit of the Celebes Sea....

, and the east coast of Borneo. Most Illanun are Muslim

Muslim

A Muslim, also spelled Moslem, is an adherent of Islam, a monotheistic, Abrahamic religion based on the Quran, which Muslims consider the verbatim word of God as revealed to prophet Muhammad. "Muslim" is the Arabic term for "submitter" .Muslims believe that God is one and incomparable...

. Their language is part of the Austronesian

Austronesian languages

The Austronesian languages are a language family widely dispersed throughout the islands of Southeast Asia and the Pacific, with a few members spoken on continental Asia that are spoken by about 386 million people. It is on par with Indo-European, Niger-Congo, Afroasiatic and Uralic as one of the...

 family, and is most closely related to Maranao

Maranao

Maranao is the term used for the people of Lanao, a predominantly Muslim region in the Philippines island of Mindanao. They are famous for their artwork, sophisticated weaving, wood and metal craft, and their epic literature...

 of the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

. Its ISO code is ISO 639-3

ISO 639-3

ISO 639-3:2007, Codes for the representation of names of languages — Part 3: Alpha-3 code for comprehensive coverage of languages, is an international standard for language codes in the ISO 639 series. The standard describes three‐letter codes for identifying languages. It extends the ISO 639-2...

ill. Historically, the Iranun were given the exonym Illanun during the British colonial era.