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Cognomen Ruščak (Рущак , Ruščak, Рушчак ) , around the globe, is quite a rare last name. The family name Ruščak is habitual in Ukraine, where it is quite a rare surname, Belarus, where it is a rare surname, and Kazakhstan. In absolute terms, it most frequently occurs in Ukraine, Russia, and Kazakhstan.
VARIANT | COUNTRY |
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Рущак | Russia, Belarus, Ukraine, Kazakhstan |
Рушчак | Russia |