Last name Berthan (Berthan 
) , in the entire world, is a very rare surname. The family name Berthan is habitual in Malaysia, where it is a rare surname, Denmark, where it is a very rare surname, and Germany. In absolute terms, it is commonest in Malaysia, Germany, and China. Much less frequently, Berthan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Berthan | Germany, China, Malaysia, United States, Denmark |