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Last name Dujko (Dujko
, Дуйко
) , in the world, is a rare cognomen. The last name Dujko is habitual in Ukraine, where it is a rare surname, Russia, where it is a very rare surname, and Kyrgyzstan. Very seldom, Dujko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dujko | Croatia, France, Poland, United States |
| Дуйко | Ukraine, Russia, Kyrgyzstan, Kazakhstan |
Jzef, Tesla, and Radovnikovic