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In all the world, Petrou (Петру , Petrou , بترو ) is a rare dominantly masculine, but seldom female first name. The given name Petrou is characteristic of Cyprus, where it is quite a rare female name, Greece, where it is a rare epicene name, and Romania, where it is a rare boy's name. In absolute terms, it is commonest in Russia, Greece, and Egypt. More prevalently, Petrou is the last name as well as the forename.
Petrou is also a name for the fictitious and mythical characters: Petrou , the theatrical character in the play "Fortounatos".