Islam in Indonesia Islam in Indonesia Islam is the most adhered to religion in Indonesia, with 87.2% of Indonesian population identifying themselves as Muslim in 2010 estimate. Indonesia has the largest Muslim population in the world, with approximately 225 million Muslims. In terms of denomination, absolute majority adheres to Sunni Islam, while there are around one million Shias (0.5%), who are concentrated around Jakarta, and about 400,000 Ahmadi Muslims (0.2%). In terms of Islamic schools of jurisprudence, based on demographic statistics, 99% of Indonesian Muslims mainly follow the Shafi'i school, although when asked, 56% does not adhere to any specific school. Trends of
Indonesian names fishmonger or hawker with "Abang". "Gus" (from "bagus") is used exclusively to address an honorable Eastern Javanese person with a strong traditional and religious identity. For example, the Indonesian former president, Abdurrahman Wahid is often addressed as "Gus Dur". Indonesians do not generally use a given or first name and a family, last or surname name. The majority of Indonesians do not have family names. Rather, their given names are geographically and culturally specific. Names beginning with "Su" in Indonesian spelling ("Soe" in Dutch orthography), or ending with an "o" are usually Javanese people. For example, people called "Suprapto" or