Throughout the world, Estel-Knoop (Estel-Knoop 
) is an extremely rare unknown gender first name. Much more frequently, Estel-Knoop is the last name as well as the forename. Parts of the name also exists independently as a first name Estel, and a last name Knoop.
| VARIANT | COUNTRY |
|---|---|
| Estel-Knoop | Germany |