The Amman Message is a statement calling for tolerance and unity in the Muslim world that was issued on 9 November 2004 by King Abdullah II bin Al-Hussein of Jordan, and his advisor Sheikh Izz-Eddine Al-Tamimi. The message aims to "clarify to the modern world the true nature of Islam and the nature of true Islam," and to specify which actions do and do not represent the religion.

The terms Muslim world and Islamic world commonly refer to the Islamic community, which is also known as the Ummah. This consists of all those who adhere to the religious beliefs, politics, and laws of Islam or to societies in which Islam is practiced. In a modern geopolitical sense, these terms refer to countries in which Islam is widespread, although there are no agreed criteria for inclusion. The term Muslim-majority countries is an alternative often used for the latter sense.