The Madurese (sometimes Madurace or Madhure) also known as Orang Madura and Suku Madura in Indonesian are an ethnic group originally from the island of Madura now found in many parts of Indonesia, where they are the third-largest ethnic group by population. Common to most Madurese throughout the archipelago is the Islamic religion and the use of the Madurese language. The Madurese are a religious ethnicity, often affiliated with Nahdlatul Ulama, a moderate Indonesian Muslim organization. Pesantren has a pivotal role in Madurese life.