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Family name Ostapjuk (Ostapjuk
, Остапюк
) , around the globe, is quite a rare surname. The cognomen Ostapjuk is habitual in Ukraine, where it is quite a rare surname, Belarus, and Estonia. Measured by absolute frequency, it most frequently occurs in Eastern Europe, particularly Ukraine, Russia, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Ostapjuk | Estonia, United States, United Kingdom, Russia |
| Остапюк | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |