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Cognomen Gachko (Gachko
, Гашко
) , globally, is a rare surname. The cognomen Gachko is habitual in Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gachko | Russia, United States |
| Гашко | Ukraine, Russia, Belarus, Kazakhstan |