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Across the world, Creagh (克雷 , クレイ , Creagh ) is quite a rare male first name. The first name Creagh is habitual in China, where it is a rare male name, Australia, where it is a very rare boy's name, and the United States, where it is an extremely rare epicene name. Also, Creagh is the last name as well as the forename.
Creagh is also a name for the fictitious and mythical characters: Clay Kaczmarek , the Assassin's Creed character, Assassin's Creed II; Odd Man , the fictional comic book hero created by Steve Ditko; Clay Morrow , the fictional character in the FX television series Sons of Anarchy; Clay Davis , the character from The Wire and Clay Jensen , the fictional character in the novel Thirteen Reasons Why and its television adaptation, 13 Reasons Why, among other works.