Family name Klaas-Pieter (Klaas-Pieter 
) , across the world, is an extremely rare last name. Predominantly, Klaas-Pieter is the forename as well as the last name. Parts of the name also exists independently as a first name Klaas, and a first name Pieter.
| VARIANT | COUNTRY |
|---|---|
| Klaas-Pieter | United States, Germany, Netherlands |