Surname Mãn (Mãn 
) , throughout the world, is a rare family name. The surname Mãn is characteristic of Algeria, where it is quite a rare surname, Myanmar, where it is a rare surname, and Morocco, where it is a very rare surname. In absolute terms, the name is most common in Algeria, Myanmar, and Vietnam. Very seldom, Mãn is the forename as well as the last name.