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Last name Duvnjak (Duvnjak , Дувняк ) , throughout the world, is quite a common cognomen. The surname Duvnjak is habitual in Southern Europe, particularly Croatia, where it is quite a common surname, Bosnia and Herzegovina, and Serbia (explore the name in all countries).
VARIANT | COUNTRY |
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Duvnjak | Bosnia and Herzegovina, Croatia, Serbia, Slovenia, Germany |
Дувняк | Ukraine, Russia |