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Globally, Дык (Duc , Dyk , Дык ) is a common male given name. The first name Дык is characteristic of Vietnam, where it is quite a common male name, the Democratic Republic of the Congo, where it is quite a rare male name, and Macao. Measured by absolute frequency, it is the most numerous in Vietnam, the Democratic Republic of the Congo, and the United States. Likewise, Дык is the last name as well as the forename.
Дык is also a name for the fictitious and mythical characters: Duc de Bligny , the theatrical character in the play "The Ironmaster" and Duc de Fritelli , the operatic character in the opera Le roi malgré lui by Emmanuel Chabrier; an Italian noble, husband of Alexina, chamberlain to the King.