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All around the world, Петрей (Petrei , Петрей , Petrej ) is a very rare principally boy's, but very infrequently feminine forename. The forename Петрей is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare boy's name. Much more prevalently, Петрей is the last name as well as the forename.
Петрей is also a name for the fictitious and mythical characters: Petraeus .