Throughout the world, Marilyn Karen (Marilyn Karen 
) is a very rare feminine first name. The forename Marilyn Karen is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare feminine name, and Peru. Very seldom, Marilyn Karen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Marilyn Karen | Peru, Philippines, Chile, Ecuador |