Cognomen Mustache (Mustache 
, มัสแหละ 
) , around the world, is a rare last name. The cognomen Mustache is habitual in Israel, where it is a rare surname, Thailand, and Indonesia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, Thailand, and the United States. Much less frequently, Mustache is the forename as well as the last name.