Last name Haillen (Haillen 
) , all over the world, is an extremely rare family name. The cognomen Haillen is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname, Venezuela, and Mexico. More frequently, Haillen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Haillen | Brazil, Tanzania, Chile, Mexico, Costa Rica |