Across the world, Küpper-Knoob (Küpper-Knoob 
) is an extremely rare unknown gender forename. Predominantly, Küpper-Knoob is the last name as well as the forename. Parts of the name also exists independently as a last name Küpper, and a last name Knoob.
| VARIANT | COUNTRY |
|---|---|
| Küpper-Knoob | Germany |