>
All over the world, Detlefsen (Detlefsen
) is an extremely rare male first name. Much more prevalently, Detlefsen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Detlefsen | Denmark, Argentina, United States, Germany, Guatemala |
Dethlefsen, Detlevsen, Ditlefsen, and Ditlevsen