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All over the world, Jirō (二郎 , ジロウ , جيرو ) is a rare primarily masculine, but very infrequently female first name. The forename Jirō is characteristic of Egypt, where it is a very rare male name, and China, where it is a very rare mostly male, but uncommonly female name. More frequently, Jirō is the last name as well as the forename.