Family name Moellin (Moellin 
) , around the world, is an extremely rare cognomen. The cognomen Moellin is habitual in Latin America and the Caribbean, particularly Peru, where it is an extremely rare surname. Predominantly, Moellin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Moellin | Peru, Democratic Republic of the Congo |