Cognomen Millalén (Millalén 
) , in the entire world, is an extremely rare family name. The surname Millalén is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname, and Argentina, where it is an extremely rare surname. Much less frequently, Millalén is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Millalén | Chile, Argentina |
| loreto millalén CL (b. 1974) |
|