Cognomen Sanengen (Sanengen 
) , all over the world, is a very rare surname. The last name Sanengen is habitual in Norway, where it is a rare surname, and Brazil, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sanengen | Norway, Brazil |
| alf sanengen Norwegian resistance member (1913-1991) (b. 1913) |
|