Surname Пеньчук (Пеньчук 
) , around the world, is a very rare last name. The cognomen Пеньчук is characteristic of Belarus, where it is a rare surname, Ukraine, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Belarus, Ukraine, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Пеньчук | Kazakhstan, Ukraine, Russia, Belarus |
| пеньчук, семён анатольевич Belarusian footballer, BY |
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