Family name Dethleffsen (Dethleffsen 
) , all over the world, is a rare surname. The surname Dethleffsen is characteristic of Western Europe, particularly Germany, where it is a rare surname, Austria, and Switzerland, where it is a very rare surname. Much less frequently, Dethleffsen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dethleffsen | Germany, Austria, Switzerland, Chile |
| erich dethleffsen German general (1904-1980), DE (b. 1904) |
|
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| kathrin dethleffsen (b. 1962) |
|