Last name 穆斯 (Mus 
, Moos 
, Moose 
) , all over the world, is a common cognomen. The family name 穆斯 is characteristic of Switzerland, where it is quite a common surname, Brunei, and Guatemala, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, the United States, and Germany. Likewise, 穆斯 is the forename as well as the last name.