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Cognomen Sidarchuk (Sidarchuk
, Сидарчук
) , throughout the world, is a very rare surname. The last name Sidarchuk is habitual in Lithuania, where it is a rare surname, Belarus, and Kazakhstan, where it is a very rare surname. In absolute terms, it is the most numerous in Russia, Belarus, and Lithuania.
| VARIANT | COUNTRY |
|---|---|
| Sidarchuk | Belarus, Lithuania, Russia |
| Сидарчук | Kazakhstan, Kyrgyzstan, Russia, Ukraine |