Cognomen Berentsen-Deem (Berentsen-Deem 
) , in all the world, is an extremely rare surname. The last name Berentsen-Deem is habitual in Northern Europe, particularly Norway, where it is a very rare surname. Parts of the name also exists independently as a last name Berentsen, and a last name Deem.
| VARIANT | COUNTRY |
|---|---|
| Berentsen-Deem | Norway |