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In the world, Dujko (Dujko
, Дуйко
) is a very rare masculine first name. The first name Dujko is habitual in Southern Europe, particularly Croatia, where it is a rare boy's name. More frequently, Dujko is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Dujko | Croatia, United States, Poland, France |
| Дуйко | Kazakhstan, Kyrgyzstan, Russia, Ukraine |
Jzef, Tesla, and Radovnikovic