Cognomen Karehn (Karehn 
) , throughout the world, is an extremely rare last name. The family name Karehn is characteristic of Latin America and the Caribbean, particularly Mexico, where it is an extremely rare surname. More frequently, Karehn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karehn | Mexico, Brazil, United States, Philippines |