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Family name Koltchak (Koltchak
, Колчак
, Кольчак
) , around the world, is a rare last name. The family name Koltchak is habitual in Ukraine, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Koltchak | France, United States |
| Колчак | Ukraine, Russia |
| Кольчак | Ukraine, Russia, Kazakhstan |