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In all the world, 雷格 (Reg , Reig , Reger ) is quite a common principally boy's, but very infrequently feminine first name. The forename 雷格 is characteristic of Canada, where it is quite a common boy's name, Australia, where it is quite a rare male name, and New Zealand, where it is quite a rare predominantly masculine, but very seldom girly name. In absolute terms, it is the most numerous in Canada, Australia, and the United States. Likewise, 雷格 is the last name as well as the forename.
雷格 is also a name for the fictitious and mythical characters: Reginald Cattermole , character in Harry Potter and the Deathly Hallows – Part 1 and Reg Monroe , the Fictional character in the television series, The Walking Dead.