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Around the globe, Jahn (Ян , Jahn , יאן ) is a common masculine given name. The given name Jahn is habitual in Eastern Europe, particularly Ukraine, where it is quite a common male name, Russia, where it is quite a rare boy's name, and Belarus. In absolute terms, it is the most numerous in Russia, Ukraine, and Kazakhstan. Likewise, Jahn is the last name as well as the forename.
Jahn is also a prevalent name for the fictitious and mythical characters: John the Apostle , the apostle of Jesus; son of Zebedee and Salome, brother of James; traditionally identified with John the Evangelist, John of Patmos, and the Beloved Disciple, Gospel of Mark; Jan Bronski , the fictional character from The Tin Drum by Günter Grass; General Dodonna , the character in the Star Wars universe, Star Wars: Episode IV – A New Hope; Ivan Orav , the ultra-patriotic fictional character created by Andrus Kivirähk, Ivan Orava mälestused and Jan Brady , the character from The Brady Bunch, and in many other works.