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Surname Onofreichuk (Onofreichuk
, Онофрейчук
) , globally, is a rare cognomen. The family name Onofreichuk is habitual in Ukraine, where it is a rare surname, Kyrgyzstan, and Kazakhstan. Not in comparison with a country's population, it is commonest in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Onofreichuk | Israel, United States |
| Онофрейчук | Kazakhstan, Kyrgyzstan, Russia, Ukraine |