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Globally, Zajko (Zajko
, Зайко
) is a very rare masculine first name. The given name Zajko is habitual in Bulgaria, where it is a rare boy's name, and Croatia. More prevalently, Zajko is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Zajko | Bosnia and Herzegovina, Poland, Slovakia, Hungary, United States |
| Зайко | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |