Islamic Shari'a law in Brunei supersedes civil law and it regulates all of life. The national constitution states, "The religion of Brunei Darussalam shall be the Muslim religion.” Life is difficult for Christians in Brunei. Some have lost their jobs without any notice.

Countries around the world with Muslim populations of at least 10% or with more than 1 million. Countries with a * have a Muslim majority or at least 50% Muslim.