In the entire world, Merlen (Merlen 
) is a rare predominantly female, but very seldom masculine first name. The first name Merlen is characteristic of Philippines, where it is a rare predominantly feminine, but very seldom boy's name, Mexico, where it is a very rare girly name, and Colombia. In absolute terms, it most frequently occurs in Philippines, Mexico, and the United States. Likewise, Merlen is the last name as well as the forename.